Assume that when you take a bath, you fill a tub to the halfway point. the tub measures 5 feet by 3 feet by 2.8 feet. when you take a shower, you use a shower head with a flow rate of 1.52 gallons per minute, and you typically spend 12 minutes in the shower. there are 7.5 gallons in one cubic foot.

Total water used while taking a bath is half the volume of water in tub.
Volume of water used=(volume)/2
=(5×3×2.8)/2
=42/2
=21 cubic feet

Total amount of water used while taking a shower will be given by:
Total amount of water=rate×time
=1.52×12
=18.24 gallons
Thus amount of water in cubic feet if there are 7.5 gallons in 1 cubic foot will be:
amount=18.24/7.5=2.432 cubic feet.

Therefore the conclusion is, the person is using more water in bathing than shower.