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2 years ago

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an oil tanker can be emptied by the main pump in 5 hours. an auxiliary pump can empty the tanker in 8 hours. if the main pump st

arted at 5 pm, when should the auxiliary pump be started so that the tanker is emptied by 9 pm?

2 answers:

Verizon [17]2 years ago

8 0

1pm is the correct answer
8+1=9

r-ruslan [8.4K]2 years ago

6 0

Answer:

1 pm

Step-by-step explanation:

1 + 8 = 9

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