The DENSITY of water is 62 1/2 lb per cubic foot. Water that weighs 150 lbs will fill how many cubic feet? Is the answer 2 13/31

Question

This problem is supposed to be about dividing fractions, but the answer I put in was wrong. I put in 2 13/31. You would get that if you did 150 divided by 62 1/2. Were my calculations wrong or off? Was I supposed to multiply? Please help me understand this problem, for future reference. I would also know how I would solve this problem.

Answer 1

The volume is 

 

V = weight / density = (150 lbs) / (62.5 lbs/ft³) = 2.4 ft³ = 2 2/5 ft³

 

This is the correct answer, assuming the numbers provided in the problem statement are correct.