Dimple 14 years AGO

I think answer given by site administrator for the puzzle (How many methods are possible for arranging 5 boys and 4 girls in such a way that no 2 girls could sit together?) is wrong.

Mr. Biswas has also accepted the same and commented as
there are 10 ways...
and 5!*4!*10=2880
i m not sure ...admin ...plzz update the correct answer clearly fr better understandin......plzzz!!!!

I think
The correct sol will be 5!*7p4
or 120*7*6*5*4.

Pls check and correct.

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Vadivelan M 14 years AGO

@ Prerna,

According to your explanation,

when the condition states three consecutive integers are not allowed, will that mean two consecutive integers also not allowed & also same integer not allowed??? that doesn't imply such way... sorry...

and for Friday puzzle, you can refer postings by MP and Jamat. As they said 52 is the correct answer.

The main thing is 5 boxes r similar so don't consider the order of boxes. Just check for splitting the letters among the boxes. 5,0,0,0,0 4,1,0,0,0 and so on... in that u have to consider which letters u r choosing as group. hope those 2 posts will show that splitting. Here i couldn't explain full scenario as it would be very lengthy. thanks.

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Dimple 14 years AGO

For today's puzzle

How many methods are possible for arranging 5 boys and 4 girls in such a way that no 2 girls could sit together?

I think correct answer is not given in options.

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susmit 14 years AGO

for the puzzle dated 4/2/11,
proper points are not alloted.

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Subhradip Biswas 14 years AGO

sir plzz add BIRBHUM INSTITUTE OF ENGINEERING & TECHNOLOGY...SURI......

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Prerna 14 years AGO

@ Vadivelan,

when even successive integers are not allowed, then how same integer can be allowed in Thursday puzzle?

Can you please explain the logic of your answer for puzzle dated 4/2/2011 for 5 letters and 5 boxes.

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MP 14 years AGO

Dear admin,

Pls check that my answer was option 10 but I am still getting -1 mark .

pls correct the status .

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Jagat 14 years AGO

i am surprised to find that answer given by site administrator for yesterday's puzzle is not correct.

Combinations for.... 2,2,1,0,0 ...30 is not correct.

If there are 5 letters , abcde then possible combinations for 2,2,1,0,0 are
a..bc..de
a..bd..ce
a...cd...be

b..ac..de
b..ad..ce
b...cd...ae

c..ba..de
c..bd..ae
c...ad...be

d..bc..ae
d..ba..ce
d...ca...be

e..bc..da
e..bd..ca
e...cd...ba


so possible combinations are 15 and not 30.

pls check and correct me, if I am wrong.

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MP 14 years AGO

I think solution given for 4/2/2011 puzzle is not correct.


Possible combination
Combinations No of method
5,0,0,0,0 1
4,1,0,0,0 5
3,1,1,0,0 10
3,2,0,0,0 10
2,1,1,1,0 10
2,2,1,0,0 30
1,1,1,1,1 1
--------------------------
67

combinations for 2,2,1,0,0 will be 15 and not 30 as mentioned in solution given today.
In that case , total combinations/methods will be 52 which is not given in options if 10th option is 'None' and not 'none of the above ' as asked by Jagat earlier.

I have given the answer considering 10th option as 'none of the above'.

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neena 14 years AGO

why my name was not there in the list of the ppl who got correct answer??

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Jagat 14 years AGO

In today's question
There are 5 different letters and 5 letter boxes of same size shape and colors. How many method are possible to post the letters?

Options
1) 76
2) 56
3) 57
4) 67
5) 64
6) 68
7) 65
8) 69
9) 72
10) None

Please confirm whether 10th option is None ( zero methods ) or none of the above ?

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Vadivelan M 14 years AGO

Hi Admin,
In yesterday's problem, no where its mentioned that the 5 positive integers are different. So, all 5 numbers can be 4 which leads to a answer 20. So, Could you re-consider the solution? Thanks in advance.

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Mayank Jain 14 years AGO

sir i am a engineering student but i am not able to nominate myself in the test which is going to conduct by you in upcoming days.

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dharmaveer 14 years AGO

supporting state section is very bad thing. this should be removed.

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sourav roy 14 years AGO

please update bengal college of engg.durgapur in your list

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MANOJ 14 years AGO

lz solve hexaware question.

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Amit 14 years AGO

please add BRCM COLLEGE OF ENGG & TECH,BHIWANI,HARYANA

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vasu 14 years AGO

I think this system of support/against is not fair as many fake users are against Punjab, Andhra, kerala and gujarat.
This type of system is creating differences among users of different states.

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Abhishek Divakar 14 years AGO

i think there should be a certain manner in which solutions should be written.
these solutions are hard to comprehend if everyone writes in his own fashion.
so we should all agree to a certain fashion.

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RAVI 14 years AGO

name of all the colleges are not supplied here so pls include all the engineering colleges of wb

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YadeeshKumar 14 years AGO

sir my college name is not in that list . am from k.l.n college of engineering,
pottapalayam,sivagangai. tamilnadu.

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CHANDARASEKARAN 14 years AGO

is it enough for TCS ,PLZ REPLY

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sivashanmugam 14 years AGO

I m new to this site. pls suggest me to clear the written test conducted by IT companies.

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shivali chatterjee 14 years AGO

ALSO I WUD LIKE TO KNOW,THAT I AM SUBMITTING ANSWERS WITH REASONS,BUT THEN WHY R THEY NT BEING SHOWN WITH THE QUESTIONS???I CAN SEE THE ANSWERS PROVIDED BY OTHERS....

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shivali chatterjee 14 years AGO

i am just two days into using this site...while i hv got immense help already,there r certain problems,whose answers(options) r nt correct...so it wud b bettr if we got completely correct problems....

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Bawa 14 years AGO

Are the given options ( for 11/1/11 puzzle) correct ?

Please check.

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Ashish 14 years AGO

this look of site is better than previous one

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Deepak Singh 14 years AGO

tell me where are the solutions of solved TCS puzzles..........

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Sumandeep Ghosh 14 years AGO

the new look is bogus..m4math will shortly loose its popularity

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KALPANA G 14 years AGO

Dear admin, how can we get the remaining points

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~Sandeep~ 14 years AGO

Few questions related with new layout:
-Where can I see the bonus point information?
-Are the weekly prizes getting discontinued in 2011?
~Sandeep.

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tk 14 years AGO

The new look of the websyt is really good
thanx 4 d new look in the new year

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Dimple 14 years AGO

I have already verified my account by mail and mobile.

But still unable to support my state.


I am getting message

Verify email and mobile.
Pls check.

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KALPANA G 14 years AGO

Dear Admin,
I think old page was good.
Totally, score has been changed

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A.P.Singh 14 years AGO

I think old page was better.

Also my last day scores are 19 but total score has been changed to zero.

Strange ...

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Sumandeep Ghosh 14 years AGO

The new look is not good like previous one..please change it to previous one as this is not user friendly

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RAVI 14 years AGO

THANK U FOR SUCH A GOOD WEBSITE..

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~Sandeep~ 14 years AGO

m4maths.com is gaining popularity:
http://howtoprepare4cat.blogspot.com/2010/12/recommended-site-for-puzzle-enthusiasts.html

Cheers!
Sandeep.

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suchandra raavi 14 years AGO

Hi Admin, if a question is added to placement puzzles, the question numbers of all the questions are changing. Plz find a way to keep them constant so that we can reference them to others easily.

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DIPIN 14 years AGO

pls check the statement of today's puzzle

There are two bags. First contains 7 red and 5 violet balls whereas second contains 7 violet and red balls.
A ball is drawn at random from both the bags. Probability of both balls having same colour is....

Here in this line

whereas second contains 7 violet and red balls.

number of red balls in second bag is not specified which is necessary to get the desired result.

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~Sandeep~ 14 years AGO

Hi Admin,
Seems some info is missing for today's puzzle:
Doesn't mentions how many red ball does 2nd bag contains:
7 violet and red balls.

Sandeep.

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Soni 14 years AGO

Pls check on dated 22/12/10.

1, 60, 60, 24, 7, 4.5 ............

solution given is

The sequence is
1 second

1 minute = 60 seconds

1 hour = 60 minutes

1 day = 24 hours

1 week = 7 days

1 month = 4.5 weeks

1 year = 12 months


How one can take 1 month = 4.5 weeks ?

Even if we take month having 31 days , then
1 month = 31/7= 4.43 weeks which can be taken as 4.4 and not as 4.5.

Pls give correct statement to get correct answer from all concerned.

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YadeeshKumar 14 years AGO

Dear Admin, How can we utilize this "Trace Your Puzzle" Checkbox

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Gourab Das 14 years AGO

plz solve the tcs recent papers puzzle

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arun 14 years AGO

to admin ,
i have submitted so many puzzles.plz solve them.I need help.

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YadeeshKumar 14 years AGO

dear admin while submit of placement puzzle it shows a word like " please explain your solution to make it best soulution"
i think that "soulution" is wrongly typed there if yes means pls change that.. Thank U

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~Sandeep~ 14 years AGO

Not sure if the solution of Today's Puzzle published on 16/12/2010 is correct?
If two successive offers are given then only the answer is 101900 else it should have been 103900.
To me it was not clear from question if both offers could be applied together too.
Same thing I have updated in my Answer reason still I got -1 :(

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DIPIN 14 years AGO

New Qn will appear on saturday.

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Aman 14 years AGO

I think some data is missing in qn.

There are 100 students in a class. 20 students are failed in mathematics as well as in chemistry whereas
3 are failed in chemistry only. What will be the probability that any student failed in mathematics will also
be failed in chemistry?


As it is stated that 20 students are failed in mathematics as well as in chemistry . No data is given about students who failed in mathematics only.

Pls check.

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