Basic Maths Data Intensity 4 :: Discussion


6.A can lay a 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 ?
A.4
B.9.6
C.9
D.10
Answer:  Option  B
Explanation:

Part of work completed by A and B in 4 days
= 4*((1/16) + (1/12))
= 7/12 C can complete 5/12th of the work in 4 days C can complete the whole job in
4÷(5/12) = 9.6 days

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Published by:Michael Daani

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