Question

a tank has 205 litres of water.7 buckets of water are poured and 10 buckets of water are drawn out. now tank has 160 litres of water. what is the capacity of each bucket?

Answer 1

initial amount of water in tank = 205 L

let the capacity of bucket = x L

7 buckets of water are poured.
amount of water in tank = (205 + 7x) L

10 buckets of water are drawn out
amount of water in tank = 205 + 7x - 10x = (205 -3x) L

now tank has 160 litres of water.

So 205 -3x = 160

=> -3x = 160 - 205

=> -3x = -45

=> x = (-45)/(-3) = 15 L

Hence, capacity of bucket is 15 litres