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:

9 1 days
5

9 2 days
5

9 3 days
5

10
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

Therefore 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 17 of 23.

Raga said:   1 decade ago
Why 5/48 concert to 48/5 please clarify me?

Sudhanshu patra said:   9 years ago
@Ganesh.

Thanks for explaining the answer.

SHAILESH SALVE said:   3 years ago
How 5/48 to 48/5? Please explain this step.
(24)

VASUDEVARAO said:   1 decade ago
Thank you nikitha well s. C method thanku.

Karthick said:   1 decade ago
Why the fraction 5/48 is changed to 48/5?

Naresh saini said:   10 years ago
How it is possible to write 5/48 to 48/5?

Lakshmi said:   9 years ago
Thanks for clarifying the solution @Ajay.

Cherry said:   5 years ago
Good explanation, Thanks @Billal Hossain.

Meenakshi dhawan said:   1 decade ago
@Saquib Ali.

You have solved it wisely.

Surendra said:   1 decade ago
Why you have shown 48/5 instead of 5/48?


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