Answer:
146.82 min
Step-by-step explanation:
Given that,
The two pumps working together would pump out water at a rate of 100 gallons per minute.
Step1
find the area of the basement
Area of basement = (40)(50-22) + (22)(40-24)
= (40)(28) + (22)(16)
= 1120 + 352
= 1472
Step2
find the volume of the basement
16in = 1.33333ft
volume of basement = 1472(1.3333)
= 1962.66176
Step3
time it take to pump the water out of the basement
1ft³ = 7.48052 gal
1962.66176ft³ = 14681.69 gal
Time = V / rate
Time = 14681.69 gal / 100 gal / min
Time = 146.82 min
