If we add half a number to it we get 72 then the number is …………………
If we add half a number to it we get 72 then the number is …………………
A) 38
B) 48
C) 64
D) 90
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Correct option is (B) 48
Let the number be x.
\(\therefore\) \(x+\frac x2=72\)
\(\Rightarrow\) \(\frac{3x}2=72\)
\(\Rightarrow\) \(x=72\times\frac23=48.\)
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