SOLUTION: when a car is moving at 108km hr it travels 18km on a litre of petrol if pertrol costs $ 1 62 a litre work out the costs of petrol per minute when driving the car at 108km hr

Question 987598: when a car is moving at 108km hr it travels 18km on a litre of petrol if pertrol costs $ 1 62 a litre work out the costs of petrol per minute when driving the car at 108km hr
Answer by macston(5194) (Show Source): You can put this solution on YOUR website!
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The car travels 108 km in one hour.
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Amount of fuel used for 108 km:
108km/(18km/l)=6liters
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At 108 km/hr the car travels 108 km and uses 6 liters of fuel
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(6liters/hr)(1hr/60min)=0.1_liter/minute
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(0.1 liter/minute)($1.62/liter)=$0.162/minute
ANSWER: At 108km/hr the car burns $0.162 of fuel per minute.
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