Aptitude - Pipes and Cistern - Discussion

Discussion Forum : Pipes and Cistern - General Questions (Q.No. 12)
12.
A large tanker can be filled by two pipes A and B in 60 minutes and 40 minutes respectively. How many minutes will it take to fill the tanker from empty state if B is used for half the time and A and B fill it together for the other half?
15 min
20 min
27.5 min
30 min
Answer: Option
Explanation:

Part filled by (A + B) in 1 minute = 1 + 1 = 1 .
60 40 24

Suppose the tank is filled in x minutes.

Then, x 1 + 1 = 1
2 24 40

x x 1 = 1
2 15

x = 30 min.

Discussion:
51 comments Page 5 of 6.

Joy Prakesh said:   1 decade ago
Anyone can give any explanation of @Sri's comment?

Kumar said:   1 decade ago
Some one explain in more detailed manner.

Pavan said:   7 years ago
Very good explanation, Thank you @Ishan.
(1)

Santosh said:   7 years ago
The answer is 32. I agree with this.
(1)

Pratham said:   4 years ago
I agree The right answer is 32.
(14)

Raj karan said:   8 years ago
Well explained, thanks @Ayush.

Manasa said:   1 decade ago
Thanks ishan. Well explained.

Rashiqr Rahuman said:   6 years ago
Thanks @Sanjay Pahade.

Santhosh said:   1 decade ago
Thank You Pankaj

Santosh said:   6 years ago
Thanks @Viz.


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