Aptitude - Time and Work - Discussion
Discussion Forum : Time and Work - General Questions (Q.No. 25)
25.
Twenty women can do a work in sixteen days. Sixteen men can complete the same work in fifteen days. What is the ratio between the capacity of a man and a woman?
Answer: Option
Explanation:
(20 x 16) women can complete the work in 1 day.
 1 woman's 1 day's work = |
1 | . |
| 320 |
(16 x 15) men can complete the work in 1 day.
| 1 man's 1 day's work = |
1 |
| 240 |
| So, required ratio |
|
||||||
|
|||||||
| = 4 : 3 (cross multiplied) |
Discussion:
61 comments Page 5 of 7.
Chandu said:
16 hours ago
20 W -> 16 Days.
16M -> 15 Days.
20/16 : 16/15.
= 4:3.
16M -> 15 Days.
20/16 : 16/15.
= 4:3.
Ranan said:
1 decade ago
m1*d1*h1 = m2*d2*h2
So, 16*15*h1 = 16*20*h2.
h1:h2 = 4:3.
So, 16*15*h1 = 16*20*h2.
h1:h2 = 4:3.
Ganesh said:
6 years ago
Why Cross multiplied in the last step? Please explain.
Priya said:
8 years ago
@Vijaya.
Your explanation is too simple. Thank you.
Your explanation is too simple. Thank you.
Ramesh said:
2 decades ago
the last step of the sheetal explanation seems wrong
Vikas said:
2 decades ago
Thanks Sheetal, it is very understandable solution.
Sam said:
8 years ago
=> 20women, 15men,
=> 20:15,
=> 20/15=4/3,
=> 4:3.
=> 20:15,
=> 20/15=4/3,
=> 4:3.
Aniket said:
8 years ago
3:4 is the correct use formula M1D1/W1 = M2D2/W2.
Vijaya lakshmi said:
2 years ago
(20w) 16:(16m) 15.
By Cancellation: We get 4:3.
By Cancellation: We get 4:3.
(3)
Akash kumar said:
5 years ago
M1 * D1 = M2 * D2.
20*16 = 16*15,
4 = 3,
4:3.
20*16 = 16*15,
4 = 3,
4:3.
(7)
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