Question

A car can travel 480 miles on a full tank of petrol. The tank holds 60 litres.
The fuel gauge shows there are 15 litres left in the tank.
How many more miles can the car travel before it runs out of petrol?

Answer 1

Answer:

Step-by-step explanation:

Miles. Litres

480 60

x 15

Cross multiply[since direct variation]

480*15=60x

x=480*15/60

x=120

Therefore, the car runs for 120 miles.

Answer 2

Given:

A car can travel 480 miles on a full tank of petrol. The tank holds 60 litres. The fuel gauge shows there are 15 litres left in the tank.

To find:

The more miles that the car can travel before it runs out of petrol.

Solution:

As given,

The tank of a car can hold maximum petrol = 60litres

On a full tank, the car can travel a distance = 480 miles

This means,

With 60 litres of petrol in the tank, the car can travel distance = 480 miles

So,

With 1 litre of petrol in the tank, the car can travel a distance

$= \frac{480}{60} \: miles$

$= 8 \: miles$

So,

With 15 litres of petrol in the tank, the car can travel a distance

$= 8 \times 15 \: miles$

$= 120 \: miles$

Hence, with 15 litres, the car can travel 120 miles more.