Question

Sammy usually takes a 18 minute shower in the morning. If a 4 minute shower uses an average of 20-40 gallons of water, what is the maximum gallons of water that Sammy could be using in her shower?
a.
72 gallons of water
b.
360 gallons of water
c.
90 gallons of water
d.
180 gallons of water

Answer 1

A 4-minute shower uses up to 40 gallons, so the maximum flow is 40/4 = 10 gallons per minute. For an 18-minute shower: 18 × 10 = 180 gallons. Answer: d.