Question

Two different kind of bricks were produced. The dimensions of one kind are $10cm\times 12cm\times 14cm$and the dimensions of other are $12cm\times 14cm\times 16cm$.
By what percent is the volume of the larger brick greater than the volume of the smaller brick.

• A. by 37.5%
• B. by 40%
• C. by 50%
• D. by 60%

Answer 1

The correct option is D by 60%

Vol. of smaller brick $=10\times 12\times 14=1680c{m}^3$
Vol. of larger brick $=12\times 14\times 16=2688c{m}^3$
Vol. of larger brick greater than smaller brick.=$2688-1680=1008c{m}^3$
Vol. of larger brick greater than smaller brick (%)
$\frac{2688-1680}{1680}\times 100=$60%