Hello -

I teach a remedial math class, but this question came from a man in the community that was referred to me. I figured I would try my best. I usual mess with algebra or lower math.

Here was the question:

What size rectangular tank would I need to hold about 500-600 gallons of water.
I figured the volume of one gallon is 7.48 cu ft. and V= lxwxh

Would a 4ft x4ft x 5ft be adequate?

Thank you



Hi Cissy,

What you have done is correct but you have stated it incorrectly. One cubic foot is 7.48 gallons. Thus 600 gallons is 600/7.48 = 80 cubic feet. Hence a rectangular tank measuring 4 ft by 4 ft by 5 ft will hold 600 gallons.