Question

A rectangular box has a volume of $24$. Find the new volume of the box after reducing its length to one-half and tripling its height.

• A. 36
• B. 20
• C. 42
• D. 30

Answer 1

Answer: (A)

36

Let the length , widthth height and is $l,w$ and $h$ and given volume is $24$.

Then volume $lwh=24$

As per question length is half of $l=$ $\frac{l}{2}$

and height is tripling of box $=3h$

And widthth $=w$

Then new volume of box $=$ $\frac{l}{2}l\times w\times 3h=\frac{3}{2}lwh=\frac{3}{2}\times 24=36$