RRB ALP 29th Aug 2018 Shift-2 Question 9

Question 9

A and B can complete a task together in 35 days. If A works alone and completes 5/7th of the task and then leaves the rest for B to complete by herself, it will take a total of 90 days to complete the task. How many days would it take by A, the more efficient among the duo, to complete the entire work by herself?


Fraction of work completed by A is not mentioned.

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vinotha vithiyadharan

1 year, 4 months ago


Sudhansu Patra

11 months, 4 weeks ago

Critical question .....
A 's efficiency here , 5/6 = 0.8333
B's efficiency = 1/6 = 0.16666
A + B = 7 unit

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