Question

A plane flies 405 km on 90 litres of fuel.
How much fuel is needed for 540 km?​

Answer 1

Answer:

120 l

Step-by-step explanation:

Answer 2

Find the fuel needed to travel 1 km:

405 km = 90 litres

1 km = 90 ÷ 405 = 2/9 litres

Find the fuel needed to travel 540 km:

1 km = 2/9 litres

540 km = 2/9 x 540 = 120 litres

Find the distance it can travel with 1 litres:

90 litres = 405 km

1 litres = 405 ÷ 90 = 9/2 km

Find the distance it can travel with 50 litres:

1 litre = 9/2 km

50 litres = 9/2 x 50 = 225 km

Answer: 120 litres of fuel is needed to travel 540km. 50 litres of fuel can travel 225 km.