Question

in a hospital used water is collected in a cylindrical tank of diameter 2m and height 5m after recycling this water is used to irrigate the park whose length is 25m and bredth is 20m if tank is filled completely then what will be the height of standing water used fir irrigating the park

Answer 1

Volume of water collected in cylindrical tank=water used to irrigate the park
1/3×22/7×1×1×5=25×20×h
h=1÷3×22/7×1×1×5/25×20