Question

A water tank can hold$200$liters of water. There is a hole in the tank for which water in the water tank flows out at the rate of $5$ liters per hour. How much water will be left after $7$ hours $?$

Answer 1

Finding the quantity of water left in the tank

Given that, capacity of tank is $200$litres

Quantity of water flows out in one hour $=$ $5$ litres

Now, quantity of water flows out in$7$ hours$=7\times 5$ litres $=35$ litres

Water left in the tank after $7$ hours $=200-35=165$ litres

Hence, the $165$ litres of water will be left in the tank after$7$ hours.