an easy math puzzle

May 13

math, puzzle Add comments

Got this puzzle in an email-forward today…
IF:
2+3=10
7+2=63
6+5=66
8+4=96
THEN
9+7=?

Answer in the comments section.

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written by Rajaram S

1. Rajaram S Says:
May 13th, 2009 at 5:54 am
Approach: Assumed that this was a straight-forward math puzzle with no hidden non-math approach. Tried to find a relation between the equations.
the equations respectively need the following multiplication factors 2,7,6,8. Couldn’t make out a series with the above numbers.
I had an excel whose password was supposed to be the answer to this puzzle.
I first reasoned out thus: 2+6=8, so thew next number must be 7+8-15. Applying this multiplicative factor, 9+7=16*15=240..the excel didnt open!

Then by a stroke of luck, noticed that the multiplicative factor was the same number as the first one in the equation, so tried 9+7=16*9=144..the excel opened ..

not a good puzzle!
2. gopi vishwakarma Says:
September 27th, 2009 at 4:09 am
answer is……. 144
3. Sexy Star Says:
September 30th, 2009 at 6:40 am
Its 144 – Correct one.
4. Kannan Balasundaram Says:
January 18th, 2010 at 8:27 am
144
5. megha Says:
March 23rd, 2010 at 5:15 am
answer is 144
6. ambidextrous Says:
March 30th, 2010 at 4:35 am
The answer is 144
procedure: Add the two numbers and then multiply the sum with the first addend
that is 9 + 7 = 16 and 16 x 9 is 144
7. divya Says:
July 9th, 2011 at 7:59 pm
the answer is 144…!!
8. Bharat Pattani Says:
September 26th, 2011 at 11:08 am
mail me mathetical quiz with ans.My children enjoy it.
Regards.
Bharat Pattani
9. rezaborzou Says:
October 18th, 2011 at 8:01 am
9+7=16*9=144

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