Two pipes A and B can independently fill a tank completely in 20 and 30 minutes respectively. If both the pipes are opened simultaneously, how much time will they take to fill the tank completely?

20152Mprelimsupscyear-2015p2csatquantitative-abilitywork-and-time
A.10 minutes
B.12 minutes
C.15 minutesCorrect
D.25 minutes
Explanation & Solution

Correct Option: (C) 15 minutes

हिंदी में प्रश्न एवं आदर्श उत्तर

Two pipes A and B can independently fill a tank completely in 20 and 30 minutes respectively. If both the pipes are opened simultaneously, how much time will they take to fill the tank completely?

A.10 minutes
B.12 minutes
C.15 minutesसही
D.25 minutes

सही उत्तर: (C) 15 minutes

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