Pipe A and B tank filling time
CMAT 2021 · Quantitative Techniques & Data Interpretation · Easy · Time and Work
Two pipes A and B can fill a tank in 5 hours and 20 hours respectively. Both pipes together can fill the same tank in:
- A.
4 hours
- B.
6 hours
- C.
10 hours
- D.
2 hours
Answer
A
Explanation
Let the total capacity of the tank be units.
- Rate of Pipe A = units/hour
- Rate of Pipe B = unit/hour
Combined rate of A and B = units/hour.
Time required together = hours.
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