Aptitude - Chain Rule - Discussion
Discussion Forum : Chain Rule - General Questions (Q.No. 1)
1.
3 pumps, working 8 hours a day, can empty a tank in 2 days. How many hours a day must 4 pumps work to empty the tank in 1 day?
Answer: Option
Explanation:
Let the required number of working hours per day be x.
More pumps, Less working hours per day (Indirect Proportion)
Less days, More working hours per day (Indirect Proportion)
| Pumps | 4 | : | 3 |  |
:: 8 : x |
| Days | 1 | : | 2 |
4 x 1 x x = 3 x 2 x 8
 x = |
(3 x 2 x 8) |
| (4) |
x = 12.
Discussion:
69 comments Page 6 of 7.
Anamika said:
1 decade ago
Math Master's solution is really easy to uderstand
Manasi said:
9 years ago
Thanks for solving the problem. It helps always.
Arjita said:
1 decade ago
@Math master: I didn't get your first statement.
Kuntal Paul said:
1 decade ago
Mathmaster method is so simple and effective.
Abhishek said:
1 decade ago
@ Math Master I like your Approach :))
Ganesh said:
1 decade ago
Mehar. Your Explanation is very easy.
Rohan said:
5 years ago
Thanks all for explaining the answer.
(7)
Deepika said:
1 decade ago
Thanks for all for there short cuts.
Anil said:
1 decade ago
That's the better way of explaining.
Smit said:
10 years ago
I can't understand please explain.
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