Three faucets fill a 100-gallon tub in 6 minutes. How long, in seconds, does it take six faucets to fill a 25-gallon tub? Assume that all faucets dispense water at the same rate.

Answer 1

One faucet fills 100 gal in 18 min
so
a faucet does (50/9) gal/min

6 *(50/9) t = 25

6*(2/9)t = 1

t = 9/12 = 3/4 minute

Answer 2

Damon is right, but the answer wants it in seconds. So the answer is 45 seconds.