Answer:
22.35 hours
Explanation:
We given that
Length of basement=50 foot
Breadth of basement =40 foot
Height of water in basement =18 inches
We have to calculate number of hours to remove the water from the basement
We know that 1 inch= 0.083 foot
18 inches =
=1.494 foot
Volume of water in basement =

Volume of water in basement =2988 cubic foot
We are given that 1 cubic foot =7.48 gallons
2988 cubic foot=

Volume of water in basement =22350.24 gallons
In one hour, water can remove by pumping=1000 gallons
Time taken to remove 1 gallon of water by pumping =

Time taken to remove 22350.24 gallons of water by pumping =
=22.35 hours
Hence, It will take 22.35 hours to remove the water from my basement .