Question

a drum of kerosene oil is 3 by 4 full when 15 litre of oil is drawn from it it is 7 by 12 full find the total capacity of the drum​

Answer 1

let the total capacity be =x

According to the question

(3+x/4) -15 =(7+x/12)

3x-60/4=(7+x/12)

3x-60(12)=7x×4

36x-720=28x

36x-28x=720

8x=720

x=720/8

x=90