2. One pipe can fill the pool in 5 hours, and the second pipe in 3 hours. How long (in hours, minutes, and seconds) would it take for both pipes to fill the pool if they fill it together?
2. The first pipe fills $\frac{1}{5}$ of the pool in 1 hour, and the second pipe fills $\frac{1}{3}$ of the pool in 1 hour. 1 point For 1 hour, these pipes together fill $\frac{1}{5}+\frac{1}{3}=\frac{8}{15}$ of the pool. The pool will be full in $\frac{15}{8}=1 \frac{7}{8}$ hours, which is 1 hour 52 minutes and 30 seconds. $\qquad$