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Friday, February 13, 2009

Solving for the missing number

Question
32 is 40% of what number?




Solution
The problem is very straightforward.

To be able to solve it, let x = missing number
The the word problem is written as .40x = 32

Then solve for x.

x = 32
----
.40
x = 80

Lastly, double check. 40 % of 80 = 32!

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