Question

A number when added to its half gives $72$, then the number Is

• A. $84$
• B. $48$
• C. $90$
• D. None of these

Answer 1

Answer: (B)

$48$

Let the number be $x$.
According to the given condition,
$x+\frac{1}{2}\times x=72⟹x+\frac{x}{2}=72⟹\frac{2x+x}{2}=72⟹\frac{3x}{2}=72⟹x=72\times \frac{2}{3}[Oncross-multiplication]⟹x=48$
Hence, the required number is $48$.