What is the value of h in the figure

Aswimming pool has an input pump for filling the pool and an output pump for emptying the pool. the input pump can fill the pool in 3 hours, and the output pump can drain the pool in 5 hours. as you go to bed, the pool is full, but a neighbor’s kid turns on the output pump. at midnight, you awake to find the pool half empty. immediately, you turn on the input pump, but you are sleepy and forget to turn off the output pump. at what time will the pool become full?

Planning for the possibility that your home might get struck by lighting and catch on fire is part of a plan

Aboat costs 19200 and decreases in value by 12% per year. how much will it cost in 5 years