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#1 Re: Puzzles and Games » Please solve this puzzle » 2013-11-25 14:38:18

The right answer is 40.

But I would love to get the logic which you people have derived here.

#2 Dark Discussions at Cafe Infinity » Why we need numbers ? » 2013-11-13 21:06:52

Debanjan
Replies: 28

This is my fervent need to know. Why we use numbers ?

Is it possible to explain with a number system every abstract and subjective thing like say thoughts , emotions , feelings and so forth..

I would be grateful for your answer.

#3 Exercises » My question on set theory » 2013-11-13 21:02:28

Debanjan
Replies: 4

let there be two sets A and B.

IF A=B then is A union B = A intersection B ??

I would love to know your logic behind the same.

Note : A and B can be any two types of sets.

#4 Puzzles and Games » Please solve this puzzle » 2013-11-13 20:58:52

Debanjan
Replies: 4

Dear All,

Please solve this puzzle.

1+2+3 = 39
3+6+9 = 27
1+4+6 = 34

then

0+1+4 = ?

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