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04 August 2007


Puzzle:

Use five 5 s to make 37.

Can you make a target number 37 by using five 5s? You can use any math operator as you want. There are at least two different ways.

5 5 5 5 5 = 37


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Solution:

Since the total of five 5s is 25, we have to choose an operator which can make a large number. Obviously, the multiplication operator is not good enough. We chose the factory operator!

((5!+5!)-55)/5 = (120+120-55)/5 = 185/5 = 37
5!/(5+5)+5*5 = 120/10 + 25 = 12 + 25 = 37
((5+5)/5)^5 + 5 = 37


1 comment:

Sandeep Gonivada said...

a = 5+5
b = a/5
c = b+5
d = c*5