Question

Salma has 8 bottles of PEPSI which contain 13 litres in total. To get 18.5 litres of PEPSI, how many bottles she should have?

Answer 1

!2 bottles

Explanation:

Given

`8\ bottles = 13\ litre \\`

Required:

Number of bottles for 18.5 liters

Represent this with x.

So:

`8\ bottles = 13\ litre`

`x = 18.5\ litre`

Cross Multiply

`x * 13 = 8\ bottles * 18.5`

`x * 13 = 148\ bottles`

`x = (148)/(13)\ bottles`

`x = 11.4\ bottles`

Hence, she needs 12 bottles