Question

Neel poured 137 litres of water into an empty barrel. There was a hole at the
bottom of the barrel. After 5 minutes, the barrel had 134 litres 500 millilitres of
water left. How much water was left in the barrel after 40 minutes?​

Answer 1

first you have to subtract 137 with 134.5 then you will get 2.5 after that again you subtract 2.5 with 5 you will get 0.5 then multiply 0.5 with 40 minutes then you will get 20 litres