Question

Measurement of one sheet is $18"\times 18"\times \frac{1}{2}"$. If $48$ of these sheets stacked together then the volume of one such stack, in cubic feet, is

• A. $4.5$
• B. $54$
• C. $162$
• D. $648$

Answer 1

Answer: (A)

$4.5$

The cuboid so formed, as seen in the figure alongside has length of ${18}^{\prime \prime }$, breadth of ${18}^{\prime \prime }$ and a height of $\frac{1}{2}\times 48={24}^{\prime \prime }$

Thus, volume of the cuboid becomes $18\times 18\times 24=7776$ cubic inch

When converted to cubic feet, it becomes $\frac{7776}{12\times 12\times 12}=4.5$ cubic feet