Question

A drum of kerosene oil is 3/4 full. When 15 litres of oil is drawn from it, it's 7/12 full. Find the total capacity of the drum.

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Answer 1

Ok let's start

See :

First the drum was 3/4

Then 7/12

Thus Find LCM of 4 and 12

= 12

3/4 = 9/12

15 ltrs drawn out then = 7/12

Thus one value of drum = 7.5 ltrs

Total capacity= 7.5 × 12 = 90 ltrs

ANS : The capacity of drum = 90 ltrs