Question

A drum of kerosene oil is 3by4 full.when 15litres of oil is drawn from it , it is 7by12full . find the total capacity of the drum

Answer 1

let that the capacity of drum is x
according to que,
3x/4-15=7x/12
=3x/4-7x/12=15
=x/6=15
= x=15×6=90liters