M4maths Suggestion Board

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Anagha 12 years AGO

@Respected Admin,
So Many people are shown online,, but when asked anything on that chatbox nobody is there to reply.. can you please tell me.. why is it so?

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satyanarayana 12 years AGO

i want few puzzles that will have good impact in placements

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anjali 12 years AGO

i like m4maths

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Vignesh 12 years AGO

Respected Admin,

I didn't say anything wrong on U. I just thank for Your work(checking puzzles daily) nowadays.

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12 years ago

Dear Vignesh
if there will be any mistake by us then we will give reply and marks to all the users.
We did it always and every user know it.

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Vignesh 12 years AGO

Oh! Its great work by Admin. Screening all the puzzles everyday.

keep going Admin! Thanks.

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Pargat Pal Singh 12 years AGO

Thanks to all.

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~Sandeep~ 12 years AGO

Great Going Pargat!

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Anita 12 years AGO

Good job, PPS.

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Vignesh 12 years AGO

Great job Mr.PP Singh. Keep going. Thanks to solve those puzzles.

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Pargat Pal Singh 12 years AGO

Dear kalidas ji,

Thanks a lot.

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Kalidas 12 years AGO

Dear Pargat pal singh,

Good job.
Congratulation on solving 113 puzzles.

All the best.

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Balakumaran N.A 12 years AGO

Thanks SUSMIT. I got Your Logic. I agree with your answer '1'.

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susmit 12 years AGO

Dear Vignesh,
For the puzzle, 96,45,16,3,0,?
I have said that the answer is 1 and not -1.
So I agree with the ADMIN.
I have already explained the logic.
Also please note that I am SUSMIT and not SUSHMIT

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aakash k. shelke 12 years AGO

hw to know points i hav score??

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Vignesh 12 years AGO

@ Sushma

For puzzle

96,45,16,3,0,?
It have two possible answers.

1st possible : As per Admin says

2nd possible : As per SUSHMIT and BALAKUMARAN says.

It have different views of answers.

But both are correct only know???

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Sushma 12 years AGO

Dear Friends,

For puzzle

96,45,16,3,0,?

next number will be 1.

Each number in series is given by
(x+1)*(x-1)^2
where x=5,4,3,2,1,0,-1....
when x=5, number is 6*4^2=6*16=96
when x=4,
number = 5*3^2=45
..
..
when x= 2, number = 3*1^2=3
when x=1, number = 2*0^2=0
when x=0, number = 1*(-1)^2= 1*1=1

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susmit 12 years AGO

In yesterday puzzle(29/5/12) ans. is 1 and not -1.
Differences are 51 , 29 , 13 , 3 , (implying 3-4=-1)
Then 22 , 16 , 10 ,(implying 10-6=4 )
Then 6 , 6
so the next reqd. no. is 0-(-1)=1

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Vignesh 12 years AGO

@Admin,

Reply for us..Last week also i post one query. But you didn't reply for that. Now too you not reply means, its not good for this site.

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Vignesh 12 years AGO

Respected Admin,

Me too agree with BalaKumaran.
Think on that way and provide marks for all those.

Why you not responding for our queries?? Reply for all our queries??

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Balakumaran N.A 12 years AGO

Dear Admin,
In yesterday puzzle, fill the blank space
96,45,16,3,0,?
Consider differences:
96-45 = 51
45-16 = 29
16- 3 = 13
3 - 0 = 3
again take differences:
51-29 =22
29-13 =16
13-3 =10
so, next diff: 4; therefore, 4-3 = -1 +0 =-1 is the answer. plz check this answer (option 5) and provides points....

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sainath 12 years AGO

hi...friends,

how to learn the integration, differentiation's can u suggest me in easy manner...

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Jagat 12 years AGO

In previous puzzle, it was not mentioned that interest will be compound interest.
check

Amount obtained after 3 year in a principle of 90000 rupee by taking interest rate as 10 % yearly will be.......

so answer should be
none of these.

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Pargat Pal Singh 12 years AGO

(x-6)^1/2-(10-x)^1/2>=1

x=10

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Pargat Pal Singh 12 years AGO

Dear Admin,

Is there anyone to check solutions of placement puzzles ?

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Bankim 12 years AGO

@sairam,

click on Results otherwise your total points are also available on LHS.

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Kalidas 12 years AGO

I have solved today's puzzle for compound interest .

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sairam 12 years AGO

how to earn points ????and where can i see my points ???

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HARMEET KAUR 12 years AGO

In today's puzzle

It is not clear whether simple interset or compound interest is to be considered . According to that, two answers are possible depending on the case.

Pls clarify.

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Pargat Pal Singh 12 years AGO

Dear Admin,

Is there anyone to check solutions of placement puzzles ?

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Brij 12 years AGO

@ Aravind,

All the best For mahindra satyam interview.

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aravindkumar 12 years AGO

i am going to attend mahindra satyam interview..
please say me where i view those details.

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Vignesh 12 years AGO

@ Harmeet

Thanks to support me.

But yet no response from Admin:( This is too bad:(

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HARMEET KAUR 12 years AGO

In this case

How many zeros are there in the product
200*199*198*197..................*4*3*2*1.

I think observation made by Vignesh is correct.

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Flower 12 years AGO

@Vignesh

thank you for your information

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Vignesh 12 years AGO

@ Flower,

Yet not received:( But Admin says that they send gift for my address:)

You too post 300puzzles and win the prize:)
All the Best:)

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kalaiarasan 12 years AGO

at wat time daily question will post by admin..
tell me anyone at gmt+5:30 time

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Flower 12 years AGO

@ Vignesh

Have you got the prize for adding 300 unique puzzles?

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suhasini 12 years AGO

how to earn points??

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Vignesh 12 years AGO

@ Admin

Its not fair. Still no response for my query from You.

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Vignesh 12 years AGO

@ Admin

If my Query is correct, Please award marks for those who chose Option [10.None of these] for yesterday's puzzle. Otherwise, give proper explanation..

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Vignesh 12 years AGO

@ Admin,

Did U listen my query?? Plz solve it soon..

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Vignesh 12 years AGO

@ Admin

One doubt! Please Clear it.

For yesterday puzzle(16-05-2012)
How many zeros are there in the product
200*199*198*197..................*4*3*2*1

U asked only the number of zeros in the product. It means, it will have more than 54 zeros in the resultant. So, answer Option 10.None of these.

If You asked "How many trailing Zeros in the Product" means, it will have 49zeros.

Please clear my doubt...

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niru 12 years AGO

please solve
In a soap company,a soap is manufactured with 11 parts.....for making one soap,u will get one part as a scrap...at the end of the day,u have 251 such scraps....from that ,how many soaps can be manufactured? this question

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niru 12 years AGO

In a soap company,a soap is manufactured with 11 parts.....for making one soap,u will get one part as a scrap...at the end of the day,u have 251 such scraps....from that ,how many soaps can be manufactured?

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DIPIN 12 years AGO

I think PP Singh is right.

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Pargat Pal Singh 12 years AGO

In sequence
82412xx1854xx , the sequence after replacing X"s will be
8241236185427
as
8-24-12-36-18-54-27

Multiply numbers at odd place with 3 to get next number ( at even place)
Divide numbers at even place with 2 to get next number ( at odd place)

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Govind 12 years AGO

@ Viru,

It is just fun.
Don't take it to heart. Next time you may cross 95 marks barrier.

Keep posting your answers and win prizes.

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Viru Sihag 12 years AGO

bye guyz
myself would not be posting any message here for next 60 days.

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Manav 12 years AGO

@ Gauri Krishna kudtarkar ,

only possible numbers are 232,232, 323,332,333.

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vinay upadhyay 12 years AGO

why i got only 15 while others score 19

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Gauri Krishna kudtarkar 12 years AGO

I have a question
In how many ways a 3 digits number can be formed using digits 2 and 3.condition is that numbers can be repeated but there should not be a number in which 2 is repeated side by side.
for eg
233,232,333,323 -allowed
but 223,222 is not allowed

I want detail explanation how can we find this

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Viru Sihag 12 years AGO

again bad luck last week 95 points this week 94 points :(

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KillerKP 12 years AGO

Regarding below bogus puzzle which is making m for mockery of macth:
x + y^2 + z^3 = 5 + 3^2 + 1^3 = 15
Why we are just talking about 5 3 1??

Why this time Mr. Admin has not considered 0 as a natural number???
Why following combination is not considered as a valid solution:
14 1 0.
As per wikipedia of which the Admin is very fond of:
"By most definitions 0 is a natural number, and then the only natural number not to be positive."
http://en.wikipedia.org/wiki/0_(number)

Come out with your funny counter argument, lets see what you have to say this time. or
Scrap this question from this weeks puzzle if there is no logical answer

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Rakesh Kumar Kohli 12 years AGO

Yesterday's puzzle has Option 5 and not option 4 as answer because
5,3 1 is also a solution to
x + y^2 + z^3 = 5 + 3^2 + 1^3 = 15

Thus option 4) is wrong.

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kusuma 12 years AGO

answer to yesterday puzzle is 5
5,3,1
10,2,1
13,1,1
6,1,2
3,2,2

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Tijo Jose 12 years AGO

Answer to 04-May-2012 puzzle is 5.
Possible sets are
(x, y, z) =
(13, 1, 1)
(10, 2, 1)
(5, 3, 1)
(6, 1, 2)
(3, 2, 2)

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manudixit 12 years AGO

sorry for last post it must be 5 correct possible set.
so answer will 5 not 4

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manudixit 12 years AGO

Please check the answer for yesterdays daily puzzle.
ans must be 4.
thank you

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Aradhana 12 years AGO

sir,
pls check the answer of 3rd may.
5,3,1 is also a possible solutn for yesterday's problem. so the ans is opt-5.

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DIPIN 12 years AGO

Dear Admin,

Pls check yesterday puzzle.

Unacceptable answer for an ambiguous puzzle.

In no case, answer can be four.

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vignesh waran A 12 years AGO

Then What abt the combination (5,3,1) for yestr.day puzzle(3 MAY) sir

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Leena 12 years AGO

Seems veeru and administrator are thinking on same lines.

Thank God, I skipped this question.

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Karthick Babu 12 years AGO

I accept the ABINAYA and PARGAT PAL SINGH points for yesterday(3rd May) puzzle. The ans should be 5(Opt 5).

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Karthick Babu 12 years AGO

yes BANKIM. May be question leaked in advance :P

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kewal 12 years AGO

I was in dilemma whether to give answer for yesterday puzzle as 5 or none of these.

So I decided to leave the qn.
But surprised to see that there is a new answer which has no justification.
Only Viru Sihag may justify the answer.

It is simple m for murder of maths .
May God save this site.

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Pargat Pal Singh 12 years AGO

there is one king who decided to give one person 15kg of gold solid but the king told that man that every day he has to take one 1 kg# gold not more not less so here the que is that do 4 pices of that 15 kg of gold so if u know that surely ans it!!!!!!!!!!!!!!!!!!!

1,2,4,8

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Pargat Pal Singh 12 years AGO

@ Admin,

Pls check yesterday puzzle.

Three natural numbers x, y and z are such that x + y^2 + z^3 = 15
How many set of values of x, y and z are possible.

Five sets are possible if zero is not considered as natural number.

If zero is considered , then answer will be
none of these.

in any case, four (4) can not be the possible answer.
Pls solve and confirm the solution before accepting the answer.

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Bankim 12 years AGO

@ K Babu,
Test paper is leaked in advance.

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Karthick Babu 12 years AGO

One confusion:
Today(3rd May) only Natural number issue came
then how come Jagat posted date is showing yesterday(2nd May) date
JAGAT (2012-05-02).

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Karthick Babu 12 years AGO

There is no universal agreement about whether to include zero in the set of natural numbers: some define the natural numbers to be the positive integers {1, 2, 3, ...}, while for others the term designates the non-negative integers {0, 1, 2, 3, ...}.
Source: Wikipedia
http://en.wikipedia.org/wiki/Natural_number

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Jagat 12 years AGO

There is some confusion in today's puzzzle about natural numbers.
Pls clarify which definition is being considered here.
whether zero(0) is considered as natural number or not ?

There is no universal agreement about whether to include zero in the set of natural numbers: some define the natural numbers to be the positive integers {1, 2, 3, ...}, while for others the term designates the non-negative integers {0, 1, 2, 3, ...}.

http://en.wikipedia.org/wiki/Natural_number

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Balakumaran N.A 12 years AGO

Dear Admin,
How many words can be formed by using the letters of the word WEDNESDAY
(all meaningful and meaningless words are acceptable)

Note: Repetition allowed/not allowed haven't mentioned here in this question... So, Option 2 (9!) also possible... Pls check again...

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manudixit 12 years AGO

Thanks Vignesh

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Vignesh 12 years AGO

@ Manudixit

You can update it from edit profile section.
http://www.m4maths.com/my_account.php

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manudixit 12 years AGO

Hi i want to change my contact details what do i need to do ???

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Vignesh 12 years AGO

Thanks Admin.

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Vignesh 12 years AGO

@ Admin

I was Submitted 300 Unique Placement Puzzles in our Site. As per Our Prize distribution rule, How can I get that?? Waiting for Your reply??

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12 years ago

@Viru
Check the page for current rule:
http://www.m4maths.com/prize.php
You are the new user of the site. 2 year before the level of puzzle was very hard only few user used to attempt the question. At that time there were prize at 80 points and also the points distribution rule and prize was different.
Now the level of puzzle is very easy. daily some one can get 20 marks easily.
For viewing the previous puzzles you can check the Previous puzzles link at the bottom of the page.

For prize you need to touch or cross the level.

Thanks
Admin

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leena shalini 12 years AGO

where i can get tcs papers

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Viru Sihag 12 years AGO

@LEENA why r u so much interested? R u admin.
Admin plz tell me the rules and......

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Leena 12 years AGO

@ Viru,

I think rules for scores and prizes are changed .
Latest rules are available at
http://www.m4maths.com/prize.php

You definitely deserve more than that.

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Viru Sihag 12 years AGO

@LEENA plz check the comment of various persons on the same link u have given. They say that they have received cheques of Rs 500/- for getting even 80 points. I have got 95 points atleast i deserve more than that.

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Leena 12 years AGO

@ Viru,

good effort.
But there is no prize for 95 points.
check at
http://www.m4maths.com/prize.php

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Viru Sihag 12 years AGO

Admin,
I got 95 points in last week (23 April-27 April)
Is there any prize??

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Pargat Pal Singh 12 years AGO

@Ashwani,

Pls check this.

If their present ages are a and b respectively, then
a+b=91
b=91-a

When age of A was b yrs old ( (a-b) yrs earlier), then age of B was b-(a-b) =2b-a yrs.

As per given condition,
a= 2(2b-a)= 4b-2a
or 3a=4b where b=91-a

3a= 4*(91-a)
7a= 4*91
a=4*91/7 =4*13 = 52 yrs

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Pargat Pal Singh 12 years AGO

A tells B when I was half of your present age you were 1/4th of my present age. If Aâ€™s present age is 36, what is Bâ€™s present age?

30 years
My present age is 36 and let your present age be x.
then
when you(B)were 36/4 = 9 yrs old, my age (A)was x/2 years
so
(x/2) -9 = 36-x
x-18 =72-2x
3x= 90
x= 30 years

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Pargat Pal Singh 12 years AGO

A tells B “I am twice as old as you were when I was as old as you are now. Sum of their present ages is 91. Find A's present age?

age of A = 52 yrs, age of B= 39 yrs

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Pargat Pal Singh 12 years AGO

A tells B â€œI am twice as old were when I was as old as you areâ€. Sum of their present ages is 91. Find Aâ€™s present age?

age of A = 52 yrs, age of B= 39 yrs

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Pargat Pal Singh 12 years AGO

A tells B when I was half of your present age you were 1/4th of my present age. If Aâ€™s present age is 36, what is Bâ€™s present age?

B is 30 years now.

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Viru Sihag 12 years AGO

@Vignesh: Assume that the age of his dad before 15 years is "D" and his mom is "M" and age of son is "S". And given- D=7*S & M= 6*S & D=M+5.
Now put the value of D and M in last equation and you get S=5 , D=35 & M=30 after 15 years the age of Dad , Mom and son are 50,45 and 20 and sum =50+45+20=115.

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vignesh waran A 12 years AGO

yesterday(24 Apr) puzzle, i.e., the family age is not clear to me., can any 1 explain it...!

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Viru Sihag 12 years AGO

the time of puzzle of the day ,MUST BE CHANGE because i am a student and i am not able o solve it at 11:00....as iam in college that time ......so plz plz do something for that plz

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niru 12 years AGO

Dear M4Maths Team,
Thanks a lot for recognizing & sending me the gift for FIRST "300 ask puzzles". I was delighted to receive a courier containing parker pen as the reward today.
Regards, NIRANJAN.

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Jagat 12 years AGO

Dear Sandeep,

Your comments and discussion are important for all of us.
Such discussions give a different view point to understand things in a better way.

I hope that administrator will also take such discussions in right spirit.

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~Sandeep~ 12 years AGO

:) I am speechless and have already given up...I have understood its waste of time in arguing here if things are so adamant.
Making a promise to myself would not be posting any message here for next 30 days.

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Viru Sihag 12 years AGO

arey bhai logo points nahi mil sakte yaha....but agr koi xam me aaye to dono answer sahi honge..

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12 years ago

The other explanation that perfect square number should be a natural number is only a view not a definition. And this is not a true view because if it is true then what about 9/25 which is not natural but perfect square according to Wikipedia

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~Sandeep~ 12 years AGO

Agreed with your definition but question is not that. Would you just stick to one definition when there are so many different theories & definitions related to this and the same has already been discussed and posted below?

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12 years ago

According to Wikipedia,
In mathematics, a square number, sometimes also called a perfect square, is an integer that is the square of an integer; in other words, it is the product of some integer with itself. So, for example, 0 is a square number, since it can be written as 0 * 0 and 0^2

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