For every 11 litres of petrol a car can run for 50 km. How much petrol do you need (to 1 DP) to ensure the car has enough petrol of a trip that is 228 km?

Question

asked Jan 23, 2021 113k views

2 Answers

Sarye Haddadi · Answer 1 · 2021-01-30T05:01:44+0000

Answer: 50.2 liters

Explanation:

11 liters = 50km

Z liters = 228km

To get the value of Z, cross multiply

228 x 11 = Z x 50

2508 = 50z

Divide both sides by 50

2508/50 = 50z/50

50.16 = z

50.16 has two decimal places, so convert to 1 decimal place by approximation

50.16 = 50.2

Thus, 50.2 liters will be enough for 228km