Question

A number exceeds 20% of itself by 40. The number is??

Answer 1

Let the number be n
its 20% is
n x 20/100
ie 0.2n
given the number exceeds 20% of it by 40
ie
n=0.2n+40
n-0.2n=40
0.8n=40
n=40/0.8
n=50
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