Question

HELP PLS

Answer 1

Given that,

An oil company fills 1 over 10 of a tank in 1 over 5 hour.

To find,

How long it will take for the tank to fill completely.

Solution,

Let it takes t time to fill the tank completely. It can be calculated as follows :

$t=\dfrac{\dfrac{1}{10}}{\dfrac{1}{5}}\ \text{hours}\\\\=\dfrac{1}{10}\times 5\ \text{hours}$

Hence, the rate is "1 over 10 • 5 hours ". The correct option is (b).