trisha sinha 12 years AGO

How many 3-digit numbers have even number of factors?(a) 22 (b) 879 (c) 21 (d) 878

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saravanan 12 years AGO

hello everyone! will you send top IT companies solved papers for 10 years....pls send as soon as possible....
thanks & regards
saravanan

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KIRANPAL SINGH 12 years AGO

Hey, can anyone please mail me the questions related to Permutaions & CombinationS and Probability to "kplavi2009@gmail.com" related to placement quesstions asked in campus recruitment by the companies.....I would be very grateful to you people ....thans

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ajay burnwal 12 years AGO

sir, i also want 10 years tcs question paper in my email id. in the last week of september tcs will come in our college.

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md ziyaur rahman 12 years AGO

what is the shortcut for this
1!+2!+3!+..............+n!
to solve?

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Amrita Pandey 12 years AGO

pls send me capgemini latest papers wid sol.. its urgent.. i have to write paper on saturday.. email adress is amrita.pndy@gmail.com

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Anjul Agnihotri 12 years AGO

Susan made a block with small cubes of 8 cubic cm volume to make a block ,3 small cubes long, 9 small cubes wide and 5 small cubes deep. She realizes that she has used more small cubes than she really needed. She realized that she could have glued a fewer number of cubes together to lock like a block with same dimensions, if it were made hollow. What is the minimum number of cubes that she needs to make the block?

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Anjul Agnihotri 12 years AGO

Susan made a block with small cubes of 8 cubic cm volume to make a block ,3 small cubes long, 9 small cubes wide and 5 small cubes deep. She realizes that she has used more small cubes than she really needed. She realized that she could have glued a fewer number of cubes together to lock like a block with same dimensions, if it were made hollow. What is the minimum number of cubes that she needs to make the block?

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himanshu umrao 12 years AGO

sir plz send me latest and last 10 years TCS placement paper because tcs is coming in first week of september . plz give me suggestion for preparation .

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kewal 12 years AGO

a car can travel the distance between the station and the post office which are 1.2km apart in 1.8 minutes.how much faster must it travel to do the distance in 1.5minutes.

speed is inversely proportion to time taken .
s(fast)/s(slow) = time(slow)/time (fast)= 1.8/1,5 = 6/5

so new speed should be 1.2 times slow speed.
so 20% faster than initial speed.

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SARVESH SHARMA 12 years AGO

i want capgemini placement paper within a day or tomorrow please send me at"sarvesh289@gmail.com"

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sonu singh 12 years AGO

sonus0927@gmail.com

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sonu singh 12 years AGO

plz sr send me tcs last year quest. paper i.e 2011

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Shaik Nazreen 12 years AGO

@admin please send me tcs last years placement papers."nazzu.capri902@gmail.com"

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Manoj Kumar 12 years AGO

any problem regarding math question- Send me emial - rbm1821982@yahoo.co.in

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arthi 12 years AGO

please send me tcs last year placement papers

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deepthi 12 years AGO

@admin please send me tcs last years placement papers.

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IQBAL MEHDI 12 years AGO

same 2 u..........

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Viru Sihag 12 years AGO

Happy Friendship Day guyz :)

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kumar 12 years AGO

thanQ...very much for giving response to every one..

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manish kumar rai 12 years AGO

sir plz give me idea how to crack tcs appti round and gie me tcs lattest question

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ajay burnwal 12 years AGO

what is the shortcut for this
1!+2!+3!+..............+50!
to solve?

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KIRANPAL SINGH 12 years AGO

Permutatins and combinations puzzles are required.

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KIRANPAL SINGH 12 years AGO

Please post as many problems on Permutations & Combinations and Probability because this is the weak area of many students.

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Garima 12 years AGO

5 digit numbers formed using the digits 1,2,3,4,5 without repetition.The probability that a number so formed is divisible by 6 is..?

For divisibility by 6 ,last digit can be 2 or 4 only.

possible 5 digit numbers formed using the digits 1,2,3,4,5 without repetition = 5*4*3*2
possible 5 digit numbers formed using the digits 1,2,3,4,5 without repetition which are divisible by 6= 2*4*3*2*1

The probability that a number so formed is divisible by 6 = 2/5

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jyotish r 12 years AGO

@ admin,
thanks a lot for this reply.

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jaya mishra 12 years AGO

dear sir, by mistake i have asked a wrong puzzle.i have missed one word from the puzzle.AS The square of three consecutive numbers is 365.Find out smallest number?PLZ REMOVE THIS PUZZLE.

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ashutosh 12 years AGO

hello sir,please mail me yearwise placement papers of accenture and wipro......plz send its urgent...ashutosh.indian.4u@gmail.com

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Garima 12 years AGO

Age of 2 in d ratio 4:5. Total of 2 ages is 55. Aftr 2 yrs age in ratio 5:7 ages then find its its present age.

I think given data about ratio of ages after 2 years is wrong.

the ratio should increase and approach towards 1 with time.

pls check.

otherwise with first condition,

Age of 2 in d ratio 4:5. Total of 2 ages is 55.
4x+5x= 55
x= 55/9 yrs
ages are 4*55/9 and 5*55/9 years.

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jyotish r 12 years AGO

PLZ........REPLY FOR THIS.

@ admin, timing of today's puzzles is not suitable
for students,we are having our classes daily from monday to friday,so I request you to please change timing of 11:00 am.

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prem 12 years AGO

ok

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phani 12 years AGO

ITS WASTE TO SUBMIT EXPLANATION

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phani 12 years AGO

ITS WASTE TO SUBMIT EXPLANATION ........I HAVE SOLVAD UP TO 40 PROBLEMS STILL IT IS JUST 1......

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phani 12 years AGO

@ADMIN,
ITS WASTE TO SUBMIT EXPLANATION IN THIS WEBSITE.... ITS VERY DIFFICULT TO SUBMIT SOLUTION AS THERE ARE ARE LOT OF SYMBOLS..... STILL YOU HAVE NOT VERIFY THEM....

YESTERDAY I HAVE SUBMITTED LOT OF SOLUTIONS .........STILL NOT VERIFIED THEM

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jyotish r 12 years AGO

@ admin, timing of today's puzzles is not suitable
for college students,we are having our classes daily from monday to friday,so I request you to please change timing of 11:00 am.

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akshatha h k 12 years AGO

A shop stores x kg of rice. The first customer buys half this amount plus half a kg of rice. The second customer buys half the remaining amount plus half a kg of rice. Then the third customer also buys half the remaining amount plus half a kg of rice. Thereafter, no rice is left in the shop. Which of the following best describes the value of x?


answer by suganya is right but i dont knw why we hav to take remaining rice with customer 2 and 3 , why not remaining rice in customer 1 , anyone plz help me with this

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phani 12 years AGO

@ADMIN

DO NOT DISPLAY THE SOLUTION UNTIL 24 HOURS...AFTER THAT DISPLAY SOLUTION....SINCE THERE IS NO EXACT CRITERIA FOR TO DECIDE "SOLVED BY......." DO NOT DISPLAY ANY ONE S NAME... OR ELSE ALL PERSONS WHO ANSWERED IT CORRECT... ELSE IT WILL BE LOT OF DISCOURAGEMENT TO OTHERS....... IT IS DIFFICULT TO TYPE EXPLINATION..

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jyotish r 12 years AGO

@ admin, timing of today's puzzles is not suitable
for college students,we are having our classes daily from monday to friday,so I request you to please change timing of 11:00 am.

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jyotish r 12 years AGO

@ admin, timing of today's puzzles is not suitable
for college students,we are having our classes daily from monday to friday,so I request you to please change timing of 11:00 am.

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jyotish r 12 years AGO

2%of3%of4%of5%.........of10 - 1%of2%of3%of4%.............of9 will be

I DON'T KNOW HOW THIS QUESTION CAN BE CONSIDERED TO BE RIGHT.2%OF3%OF4%OF.........WHERE DO THIS TERMINATE!!!!!
WITHOUT SPECIFYING THAT HOW CAN ONE SOLVE THIS PUZZLE!!.

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Garima 12 years AGO

congrats Aman and vignesh.
for solving 100 puzzles.
all the best.

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Rohit 12 years AGO

@ Anand,

solution given by Garima ( in placement puzzles)seems correct.

Mark coins ABCDEFGHIJKL
First weighing:-

put ABCD on one side and EFGH on other side of balance.

If equal, then 3rd group, IJKL has the odd coin which can be easily found in next 2 weighings.

If ABCD > EFGH,

it means either one of ABCD is heavier or one of EFGH is lighter.

2nd weighing:-
Put ABE in one Pan and CDF in other pan.

If equal, one of GH is lighter which can be found in 3rd weighing.
If ABE>CDF, then either one of AB is heavier or F is lighter which can be found in 3rd weighing by placing A on one side and B on other side.

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Anand 12 years AGO

hello please reply with positive answer
There are 12 coins. One of them is false; it weights differently. It is not known, if the false coin is heavier or lighter than the right coins. How to find the false coin by three weighs on a simple scale?

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Virat Pandey 12 years AGO

Dear Admin.. I'm Gonna Appear for ZOHO CORPORATION written test.. I came to know its full of Puzzles and its very hard to crack.. Kindly Lemme know some puzzles asked in Zoho Corp??

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Virat Pandey 12 years AGO

Dear Admin, I'm New to this Forum.. Please Lemme Clear This Puzzle...


A Student(Tom) attends school during the week through Monday to Friday between 9 to 3 .Only on thursday his class is over by noon due to some help classes
1.On Monday between 3 to 4:30 he takes piano classes
2.On Tuesday between 4 to 6 he takes karate class
3.Wednesday between 4 to 6 he takes Art class
8.Friday between 4 to 6 he has some coaching
Question
1.Which is the best day to accommodate for library class
2)If he wants to take some replaces art class by advance art which days he can accommodate ...

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Virat Pandey 12 years AGO

A Student(Tom) attends school during the week through Monday to Friday between 9 to 3 .Only on thursday his class is over by noon due to some help classes
1.On Monday between 3 to 4:30 he takes piano classes
2.On Tuesday between 4 to 6 he takes karate class
3.Wednesday between 4 to 6 he takes Art class
8.Friday between 4 to 6 he has some coaching
Question
1.Which is the best day to accommodate for library class
2)If he wants to take some replaces art class by advance art which days he can accommodate ...

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DIPIN 12 years AGO

A nice puzzle



A B C D want to get across a lake 312 miles across.
Swimming speeds in mph: A=4 B=8 C=12 D=16
They have a motorboat that goes at 48mph but this boat can only take 2 persons.
D leaves first; 2 hours later the other 3 leave.
During the last hour, a strong salmon decides to push the boat. This causes the boat to go 72mph during the last hour.
All 4 arrive on other side at same time, 16 hours after D left.
How many miles did the boat travel?
For how many hours did A swim?
How many miles did C swim?
How many hours was B in the boat?




First of all D left for swimming @ 16 mph.
For 15 hours he swam (15*16= 240 miles) and went by boat for last 1 hr (72 miles).
C starts swimming @ 12 mph after 2 hrs.
Also A and B leave by Boat for 5 hrs ( covered 48*5= 240 miles).B swam further for 9 hrs to cover 9*8=72 miles, total 312 miles.
A came back by boat for 3 hrs and catches C who has covered 8*12=96 miles.
For next 4 hrs, A and C covered 4*48= 192 miles and reached 96+192=288 miles point from start. C starts swimming again for 2 hrs and covered balance 24 miles.
A comes back for 1 hr covering 48 miles and reaches (288-48=240) miles point to catch D who has covered 15*16=240 miles in 15 hours.
In last 16th hour, A and D covered 72 miles ( at faster speeeeeeeeeed)in 1 hr and all A,B,C,D reached on the other side at same time.

Based on this

boat travelled for all the time i.e. 14 hours(16-2) .. no doubt.
A swam for ZERO (0) hours.
D swam for 15 hours.
B was in boat for 5 hours.

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sonam tripathy 12 years AGO

Dear Admin,
in today's puzzle,today i had given the answer within 10 to 15 minutes.but after submitting,it was written 50minutes.how???

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teja 12 years AGO

can i get questions from m4maths?

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teja 12 years AGO

m4 maths is very useful

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jyotish r 12 years AGO

@admin,there are a lot of placement puzzles which are already solved.but, even then their status is shown as UNSOLVED.why are you not verifying them??????this is actually discouraging us from submitting the solutions.

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jyotish r 12 years AGO

@ admin, timing of today's puzzles is not suitable
for college students,we are having our classes daily from monday to friday,so I request you to please change timing of 11:00 am.

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phani 12 years AGO

TODAYS PUZZLE MUST BE GENERATED AUTOMATICALLY WHEN IT IS 11...UNLESS WE CLICK OPTION,"TODAY PUZZLE"IT IS NOT GENERATING AND WE LOSE TIME OVER IT.......

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phani 12 years AGO

THIS WEBSITE IS VRY SLOW......SOME DAYS IT IS NOT OPENING AT ALL....EVEN WEBSITE OPENS IT IS TAKING 30 MINUTES TO LOGIN.........

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phani 12 years AGO

DO NOT DISPLAY SOLUTION UNTIL THE PUZZLE IS SOLVED.....YOU WILL DECLARE ONLY ONE AS SOLVED.WE WILL LOSE WHEN ALREADY SOMEONE ANSWERED IT..WE WILL BE LOOKING THAT SOL. INSTEAD OF THINKING..........

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sruthi 12 years AGO

tanx alot nice website.........

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asim 12 years AGO

can you please your overall result as my name is not there from last 2 weeks & if there is any specific reason for that , plz convey it to me,

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sararamesh 12 years AGO

i never expept!......
its a excellent site for freshers!.........
thank u for the site admin and members!....

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Shikha 12 years AGO

Dear Admin,

Pls check sol of puzzle

a clock is such that it looses 4 min every day.the clock is set right on feb 25,2008 2 p.m.how many min should be added to get the right time when the clock shows 9 am on 3rd march 2008?

ans of caitanya accepted by Admin is

total no.of days between 25 FEB 2008 and 3rd MAR 2008 are 8 days(25,26,27,28,29,1,2,3 )

now total hours is 24*8=192hrs

for 1 day clock looses 4min.

so for 8 days clock looses 32min. (8x4=32)

For every 6hrs clock looses 1 min.

so total min lost until 9am of 3rd mar 2008 will be 31min.

So the time will be 1.29pm.

I think this solution is not correct.

total no.of days between 25 FEB 2008 and 3rd MAR 2008 are 8 days(25,26,27,28,29,1,2,3 )

No of days will be 7 and not 8 as calculated by Chaitanya.
day of 25th Feb should not be calculated.

Further if clock is loosing time, adjusted time should be more than actual time if qn asked is for mins to be added on feb 25,2008 2 p.m .
If time is to be adjusted at 9 am on 3rd march 2008, then time should be near 9 am on 3rd march 2008 and not near 2 PM.

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Aman 12 years AGO

Dear Admikn,
Thanks a lot.

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Ramanuj Modak 12 years AGO

wind fiows 160 miles in 330 minute,for travelling 80 miles, how much time does it require?

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Atwal 12 years AGO

Dear admin,
Pls check solution given by you

1st case all the letters are different
total no. of words of this category = 5*4*3*2*1 = 120
2nd case B comes twice and 3 others
total no. of words of this category = (4*3*2*1)*(5*4*3*2*1)/(2*1) = 240
so total words = 120+240 = 360

ans 360 is correct
but logic given seems incorrect.
as
total no. of words of this category = (4*3*2*1)*(5*4*3*2*1)/(2*1) is not equal to 240.

it should be
total no. of words of this category = 4*(5*4*3*2*1)/(2*1) = 240

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jyotish r 12 years AGO

@ admin, timing of today's puzzles is not suitable
for college students,we are having our classes daily from monday to friday,so I request you to please change timing of 11:00 am.

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Balakrishnan 12 years AGO

My answer is 360. But 2 marks are detected.Why?

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jyotish r 12 years AGO

360 is the right answer.and i got -2 points for this.
VERY NICE!!!!!!!!!!!!!!!

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~Sandeep~ 12 years AGO

One wrong answer per week is part of weekly surprise bonanza from Admin. It results in more people visiting the site checking if there is a reply from Admin or not.

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GIRISH TYAGI 12 years AGO

my answer is also 360 what to do ??
:((((

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Suman 12 years AGO

I think , aman is right.

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Aman 12 years AGO

Pls check the solution for puzzle

Total no. of words of 5 letters formed by letters of the word BOMBAY.
[You should use only 5 letters out of 6 letters of the word BOMBAY]

solution given is ..................
.....
(1st case all the letters are different
total no. of words of this category = 5*4*3*2*1 = 120
2nd case B comes twice and 3 others
total no. of words of this category = 5*4*3*2*1/2*1 = 60
so total words = 120+60 = 180)

I think answer should be 360
as
solution should be

1st case all the letters are different
total no. of words of this category = 5*4*3*2*1 = 120
2nd case B comes twice and 3 others
total no. of words of this category = 4*(5*4*3*2*1/2*1) = 60*4=240 because there will be 4 combinations of such words.
so total words = 120+240 = 360

pls excuse me if I am wrong.

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jyotish r 12 years AGO

@ admin, timing of today's puzzles is not suitable
for college students,we are having our classes daily from monday to friday,so I request you to please change timing of 11:00 am.

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jyotish r 12 years AGO

plz solve the errors related to the time display (time at which Q is submitted and answered) in the placement puzzles section.
I HAVE SEEN THE TIME OF ANSERING BEING GIVEN EARLIER THAN TIME AT WHICH THE QUESTION IS SUBMITTED.

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Vignesh 12 years AGO

Respected Admin,

Hmm.. Then, OK. Thanks for your reply.

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~Sandeep~ 12 years AGO

15 queries and not a single reply from Admin. Lets see when can he spare some time for the people here.

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somesh 12 years AGO

PLEASE CHANGE THE TIMING OF TODAYS PUZZLE FROM 11 AM.WHY ARE YOU NOT CONSIDERING THE STUDENTS WHO ARE HAVING THERE CLASSES

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aanchal sharma 12 years AGO

@ admin, timing of today's puzzles is not suitable
for college students,we are having our classes daily from monday to friday,so I request you to please change timing of 11:00 am.

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jyotish r 12 years AGO

PLEASE CHANGE THE TIMING OF TODAYS PUZZLE FROM 11 AM.WHY ARE YOU NOT CONSIDERING THE STUDENTS WHO ARE HAVING THERE CLASSES

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mukesh verma 12 years AGO

@ admin.
give the admin solution of all the queried question,,please.

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shrijajilkar 12 years AGO

What is the maximum number of half-pint bottles of cream that can be filled with a 4-gallon can of cream(2 pt.=1 qt. and 4 qt.=1 gal)

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chaitanya 12 years AGO

@ Admin,

In what basis You make the puzzle status as SOLVED/UNSOLVED.

Because I answered lot of puzzles. Those puzzles are not verified. You skipped to verify those puzzles which i solved. Why this partiality?? Who verifying puzzles??

Then for what we here to post the answer for puzzles without getting any acknowledgment from you.. Reply for my query??

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~Sandeep~ 12 years AGO

@ Aanchal - You can submit solution of daily puzzle between 11 AM to 12'O Clock in Night.

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aanchal sharma 12 years AGO

@ admin,can i submit answer of my puzzle after 11:00 am at any time..

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aanchal sharma 12 years AGO

@ admin i want the solution of latest placement puzzles..which are solved.please send me..

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~Sandeep~ 12 years AGO

@Vignesh: I like your die hard spirit. Lets see when do you get a reply from our busy admin even after asking the same question 4 times.

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Vignesh 12 years AGO

@ Admin,

In what basis You make the puzzle status as SOLVED/UNSOLVED.

Because I answered lot of puzzles. Those puzzles are not verified. You skipped to verify those puzzles which i solved. Why this partiality?? Who verifying puzzles??

Then for what we here to post the answer for puzzles without getting any acknowledgment from you.. Reply for my query??

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Tijo Jose 12 years AGO

Dear M4Maths, as specified, the unacceptable solution x = 3 in the given example is ok. But in mathematics, square root of a negative number exists. So, why is it unacceptable? On what grounds is that solution unacceptable??

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Vignesh 12 years AGO

@ Admin,

In what basis You make the puzzle status as SOLVED/UNSOLVED.

Because I answered lot of puzzles. Those puzzles are not verified. You skipped to verify those puzzles which i solved. Why this partiality?? Who verifying puzzles??

Then for what we here to post the answer for puzzles without getting any acknowledgment from you.. Reply for my query??

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~Sandeep~ 12 years AGO

Admin Sir ... Appko complex number nahi pata kya.... Question me to aapne kanhi mention nahi kiya hai ki rela numbers hi answer hoga.. Kamaal karte ho yaar ...wo bhi ek month me 4-5 baar..

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Aman 12 years AGO

1!+2!+3!+........+50! is divided by 5! then the remailnder is------------------?
a)3 b)33 c)13 d)93

all terms after 5! are fully divisible by 5!.
hence 1!+2!+3!+4! = 1+2+6+24 = 33
when 33 is divided by 5!(120), then we get 33 as remainder.

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jyotish r 12 years AGO

why not 7/9???????????????????????
I also didn't see any restriction that x-3 cannot be negative inside the square root.infact i expected this and i have even explained that taking 7/9, both sides will be having negative number inside the roots. ADMIN, plz check the reason i have submitted and provide me points.

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Tijo Jose 12 years AGO

Great!!! I didn't see any restriction that x-3 cannot be negative inside the square root.
As far as i know, sqaure root of negative numbers do exist...
Answer to 10-Jul-2012 question must be option 1 (7/9)

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Maneesh Chaubey 12 years AGO

I have been placed in TCS on 1st June, 2012 off campus drive......all this has become possible only because of m4maths.
Thanks a lot to all its community members who's ideas helped me to crack this exam.
A special thanks to Administrator for creating such a wonderful community to help student to prepare themselves for any placement exam.
M4MATHS THAK YOU SO MUCH.

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rakeshsawant47 12 years AGO

1000515+65851

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DANISH EQUBAL 12 years AGO

Dear Admin,
why you have deducted 1 marks yesterday, pls give me the reason and send me the right solution of yesterday's puzzle

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Balakumaran N.A 12 years AGO

Dear Admin,

if [(x+1)/(x-3)]^1/2 = [(x-3)/(x+2)]^1/2
then x will be x=7/9 is the answer...
Am not satisfied with your solution...

So, Please check and provides points...

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chaitanya 12 years AGO

hey why yesterdays (10 july) puzzle question is not driven in answer

i have solved it clearly and why whats the reason behind not giving solution to it.

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chaitanya 12 years AGO

hey why yesterdays puzzle question is not driven in answer

i have solved it clearly and why whats the reason behind not giving solution to it.

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chaitanya 12 years AGO

hey why yesterdays puzzle question is not driven in answer

i have solved it clearly and why whats the reason behind not giving solution to it.

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