Question

A car can travel 400 miles on a full tank of petrol. A more efficient car can travel 30% further. How many miles further can it travel on a tank? *

5 points

Answer 1

The more efficient car can travel 120 miles further on a tank compared to the original car.

Step-by-step explanation:

To find out how many miles further the more efficient car can travel on a full tank, we first need to calculate 30% of the original distance traveled by the car.

30% of 400 miles is 0.30 x 400 = 120 miles.

So, the more efficient car can travel 120 miles further on a tank compared to the original car.

Answer 2

Answer:160 miles

Step-by-step explanation:

You can work out this type of question by using the 'unitary' method, which means finding out how much for ONE.

If you set out the steps with short sentences it will be clearer.

On 15 gallons, a car can travel 400 miles÷15↓

On 1 gallon, a car can travel 400÷15=262

miles

Once you know the distance travelled on 1 gallon of fuel, you can work out the distance travelled for any number of gallons.

On 6 gallons the car can travel

6

×

26

2

3

miles.

(6 times further than on 1 gallon)

6

×

80

3

=

160

miles