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?
25 minutes
10 minutes
12 minutes
15 minutes
Answers
Answered by
0
within 10 min the tank can fill compeletly
Answered by
3
Answer:
♣The correct option is C.
Explanation:
Let capacity of tank be 60 litres (LCM of 20 & 30)
Pipe A can fill 3 litres in one minute. Pipe B can fill 2 litres in one minute.
Both pipes can fill 5 litres in one minute.
Time required = 60/5 = 12 minutes
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