Practice question

MCQ

Question

A tap X fills a tank in 5 hours. Another tap Y fills the same tank in 3 hours. If X starts filling the empty tank and tap Y joins after 1 hour, then how much time will it take for the tank to be completely filled starting from the time when the tap X started filling it?

Options

Choose one · Correct answer highlighted

90 minutes 120 minutes 100 minutes 150 minutes Correct

Explanation

In aptitude and reasoning, quantitative reasoning dictates that ratio, percentage and series logic determine correct calculation. Therefore 150 minutes is correct as it meets mathematical and logical criteria, supported by mechanistic studies and conserved across related systems.

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