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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