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 22 of 23.
Swetha said:
1 decade ago
1/12+1/16
=4+3/48
=7/48
=4+3/48
=7/48
Sai said:
5 years ago
Answer is 9 3/5 days.
Simran said:
1 decade ago
Thanks for the help.
Aruva said:
7 years ago
Thank you @Soujanya.
Naresh said:
1 decade ago
How do you get 1/4?
Jaya said:
5 years ago
Thank you friends.
Pradeep said:
1 decade ago
Thank you aparna.
Ravikumar said:
1 decade ago
How (1/16+1/20)?
Amit Bhardwaj said:
8 years ago
Thanks, @Ishwar.
Jaga said:
7 years ago
Thanks @Aanurag.
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