A can lay railway tracks between two given stations in 16 days and B can do the same job in 12 days. With the help of C, they did the job in 4 days only. Considering this, C alone can do the job in:
Given:
A can complete the work in 16 days.
B can complete the work in 12 days.
A, B, and C together complete the work in 4 days.
Formula Used:
Solution:
Work done by A in 1 day =
Work done by B in 1 day =
Work done by A, B, and C together in 1 day =
C= days
Option (D) is right.
Alternate Method:
Efficiency of C= 12 - 4 - 3 = 5
Time taken by C= days
Option (D) is right.
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