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A drum of kerosene oil is 3/4 full. When 15 litres of oil is drawn from it, it is 7/12 full. The capacity of the drum is ........ |
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Answer» Let Capacity of drum = a litres A/Q, (3/4 x a) - 15 = 7/12 x a 3a/4 - 7a/12 = 15 (3a-7a)/12 = 15 2a/12 = 15 a = 15 x 12/2 a = 90 litres Capacity of drum = 90 litres. |
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