A car travels $30km$ in $40$minutes. How long would it take to travel $45$km at the same speed?

To make $12$muffins you need:

$240 \mathrm{g}$flour

$48 \mathrm{g}$ sultanas

$60 \mathrm{g}$ margarine

$74 \mathrm{ml}$ milk

$24 \mathrm{g}$ sugar

$12 \mathrm{g}$ salt

How much of each ingredient would you need to make $16$muffins? 

To make $12$muffins you need:

$240 \mathrm{g}$flour

$48 \mathrm{g}$ sultanas

$60 \mathrm{g}$ margarine

$74 \mathrm{ml}$ milk

$24 \mathrm{g}$ sugar

$12 \mathrm{g}$ salt

Express the amount of flour to margarine in this recipe as a ratio.

A car used $45$litres of fuel to travel $495 \mathrm{km}$.

How far could the car travel on$50 \mathrm{litre}$ of fuel at the same speed?

A car used $45$litres of fuel to travel $495 \mathrm{km}$.

How much fuel would the car use to travel $190 \mathrm{km}$ at the same rate?