Question

Preeti has a rectangular field that is 10 ft long and 2 ft wide and she wants to cover it with soil. One bag of soil can cover $10{ft}^2$. How many bags will she need to cover the entire field?

Answer 1

Area of the field
= $10\times 2$
= $20f{t}^2$

Area covered by one bag of soil
=$10f{t}^2$

$\therefore$ No. of bags required

= $\frac{\text{Area of the field}}{\text{Area covered by one bag of soil}}=\frac{20}{10}=2$

Hence, Preeti need 2 bags.