ANSWER SHOULD BE:2hrs 5mins 30 secs
PLEASE SHOW THE STEP-BY-STEP SOLUTION
Extracted text: 23. A swimming pool has a gradually sloping bottom. It has a depth of 1 m at one end and a depth of 3 m at the other end. The horizontal sectional shape of the pool is a rec- tangle 50 m x .20 m. Two short tubes each 15 cm in dia- meter (C = 0.80) are located at the lowest level of the pool. If the pool is initially full of water, find the time to empty the pool through the tubes.