Question

The internal length, breadth and height of a rectangular box A is 20 cm, 18 cm and 15 cm respectively and that of the box B are 18cm, 12cm and 5 cm respectively. The volume of box A is how many times that of B?

• A. 4
• B. 5
• C. 6
• D. 3

Answer 1

The correct option is B

5

Volume of box A = 20 cm $\times$ 18 cm $\times$ 15 cm

Volume of box B = 18cm $\times$ 12cm $\times$ 5 cm

Volume of box A = N times Volume of box B

N = $\left[\frac{20cm\times 18cm\times 15cm}{18cm\times 12cm\times 5cm}\right]$

= 5