Aptitude - Time and Work - Discussion
Discussion Forum : Time and Work - General Questions (Q.No. 2)
2.
A can lay railway track between two given stations in 16 days and B can do the same job in 12 days. With help of C, they did the job in 4 days only. Then, C alone can do the job in:
Answer: Option
Explanation:
| (A + B + C)'s 1 day's work = | 1 | , |
| 4 |
| A's 1 day's work = | 1 | , |
| 16 |
| B's 1 day's work = | 1 | . |
| 12 |
 C's 1 day's work = |
1 | - |  |
1 | + | 1 |  |
= | |
1 | - | 7 | |
= | 5 | . |
| 4 | 16 | 12 | 4 | 48 | 48 |
| So, C alone can do the work in | 48 | = 9 | 3 | days. |
| 5 | 5 |
Discussion:
224 comments Page 16 of 23.
Deepika said:
1 decade ago
How is last step is taken 5/48 is reversed to 48/5?
(1)
Imran said:
7 years ago
Can anyone explain me this question by LCM method?
Ankur said:
8 years ago
How 7/48 come from 1/16+1/12?
Please explain me.
Please explain me.
Tamilmani said:
10 years ago
Please answer sir basic formula applied please.
Sidhartha said:
9 years ago
How it come 5/48? Please give a clear solution.
Sunaina said:
1 decade ago
Why we should take 16 and 12 as 1/16 and 1/12?
Emma said:
1 decade ago
Where does 48 come from in this come equation?
Nil said:
3 years ago
How 48/5 is written as 9*3/5? Please explain.
(1)
Helper said:
1 decade ago
We get 1/x=5/48.
Then we want x. So x=48/5.
Then we want x. So x=48/5.
Temesegen demelash said:
4 months ago
Thanks all for helping me to get the answer.
(3)
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