Question

A regular toilet uses 3.2 gallons of water per flush. A low flow toilet uses 1.6 gallons of water per flush. What is the difference between the number of gallons used by the regular toilet and the low flow toilet after 375 flushes?

Answer 1

The difference would be 600 gallons

Answer 2

A regular toilet uses = 3.2 gallons of water per flush.

So, after 375 flushes, water used will be =
`3.2*375=1200` gallons

A low flow toilet uses = 1.6 gallons of water per flush.

So, after 375 flushes, water used will be =
`1.6*375=600` gallons

Hence, the difference between the number of gallons used by the regular toilet and the low flow toilet after 375 flushes =
`1200-600` = 600 gallons