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Select the correct answer.When two pumps are used, they can fill a tank in 60...

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Select the correct answer.When two pumps are used, they can fill a tank in 60 minutes. When the first pump is used alone, the tank will be filled in 150 minutes. When x represents the time it takes the second pump to fill the tank when used alone, the situation is represented by this equation:1/150 + 1/x = 1/60How long would it take the second pump, working alone, to fill the tank?A 75 minutesB. 90 minutesC 100 minutesD. 120 minutes

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