Aptitude - Chain Rule - Discussion
Discussion Forum : Chain Rule - General Questions (Q.No. 14)
14.
36 men can complete a piece of work in 18 days. In how many days will 27 men complete the same work?
Answer: Option
Explanation:
Let the required number of days be x.
Less men, More days (Indirect Proportion)
27 : 36 :: 18 : x 
27 x x = 36 x 18
 x = |
36 x 18 |
| 27 |
x = 24.
Discussion:
14 comments Page 2 of 2.
Rajkumar said:
1 decade ago
@Snehal.
Just think in normal way if it is cross multiplying the answer is 13 (APPROX) , as men decrease days should increase it is not happening. So above explanation is true.
Just think in normal way if it is cross multiplying the answer is 13 (APPROX) , as men decrease days should increase it is not happening. So above explanation is true.
Vinod Chavan said:
9 years ago
36 men - 18 days.
27 men - ?.
x = 36 x 18.
27.
Answer is x = 24.
27 men - ?.
x = 36 x 18.
27.
Answer is x = 24.
POORNI said:
8 years ago
How to find direct and indirect proportion? Please explain this.
Yash said:
8 years ago
Why we can not do cross multiplication? please explain.
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