Mathematics for IGCSE & O level - Rates (Section 2 - No. 5)
An oil tank contains 1500 litres. Oil is used at a rate of 2 litres/hour. How much oil is left in the tank after 7 days?
1366 liters
1066 liters
1466 liters
1000 liters
Explanation
Oil used in 7 days = 2 L/hour * 24 hours/day * 7 days = 336 liters. Remaining Oil = 1500 - 336 = 1164 liters.
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