The distance between two cities is 1800 miles. How many litres of petrol will a motorist use with an automobile that used (on) average 1 litre of petrol for each 12 miles?
Answer: 150
Explanation
To find the amount of petrol used, divide the total distance by the distance covered per liter:
Distance = 1800 miles
Distance covered per liter = 12 miles
Petrol used = Distance ÷ Distance covered per liter
= 1800 miles ÷ 12 miles/liter
= 150 liters
So, the motorist will use 150 liters of petrol.
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