Question

For every 14 litres of petrol a car can run for 70 km. How much petrol do you need (to 1 DP) to ensure the car has enough petrol of a trip that is 126 km

Answer 1

Answer:

25.2

Step-by-step explanation:

14litres : 70 km

     ?     : 126km

126/70 = 1.8

14 x 1.8 = 25.2

25.2 litres of petrol

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Answer 2

Answer:

25.2 litres

Step-by-step explanation:

using proportion

let the amount of petrol we are searching for be x

14litres/xlitres =70km/126km

cross multiply

70x=126×14

70x =1764

x=1764/70

x=25.2litres