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A and B together can complete a work in 3 days. They started together but after 2 days, B left the work. If the work is completed after 2 more days, B alone could do the work in how many days?


A) 5

B) 6

C) 7

D) 10

Correct Answer:
B) 6

Description for Correct answer:

(A + B)'s 2 day's work = \( \Large 2 \times \frac{1}{3} = \frac{2}{3} \)

Remaining work = \( \Large 1 - \frac{2}{3} \)= 1/3

A will complete 1/ 3 work in 2

A will complete 1 work in 6

A's 1 day's work = 1/6

B's 1 day's work = 1/ 3 - 1/6 = 1/6

B will take 6 days to complete the work alone.


Part of solved Time and work questions and answers : >> Aptitude >> Time and work




Comments
How you know A work complete in 6 days
- Kiran,Devi





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