Question

A petrol barrel is 7/11 when 85 litres are drawn from it, it is just 1/4 full. find the full capacity of the barrel​

Answer 1

Answer:

Let the capacity of the barrel beXlitre

then equation is 7x/11 - x/4=85

(28x-11x)/44=85

17x/44=85

17x = 85x44

x = 85x44 /17=220

capacity 220 litre