Question

1/2 litres of kerosene costs $1.50 What is the cost of 2.5 litres?

Answer 1

`$7.50`

Explanation:

`1/2" litre costs "$1.50`

`rArr1" litre costs "2xx$1.50=$3.00`

`rArr2.5" litres costs "2.5xx$3.00=$7.50`