Discussion

Q.

Annie takes 5 days less than Benie to complete a piece of work. Jenie takes 4 days less than Annie to do the same work. The time taken by Jenie alone to complete the work is same as the time taken by Annie and Benie together to do the same work. How many days Jenie takes to complete the work alone.

A. 8

B. 10

C. 20

D. 6

Correct Option is D

Explanation:

If Benie takes x days, Annie takes x-5 days and jenie takes x-9 days to do the work.

As per the question, 1/x-5  + 1/ x 1/x-9

Solving the equations, we get x= 15

x - 9 = 6

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