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- A can do piece of work in 30 days while B alone can do it in 40 days.
Question 1:
A can do piece of work in 30 days while B alone can do it in 40 days.In how many days can A and B working together do it?
A. 16/17
B. 17/17
Feedback Therefore A's one day’s work = 1/30
B' s one day’s work = 1/40
(A+B)'s one day’s work = 1/30+1/40
4+3/120=7/120
Number of days required for A and B to finish the work = 17/120=17 1/7days
B' s one day’s work = 1/40
(A+B)'s one day’s work = 1/30+1/40
4+3/120=7/120
Number of days required for A and B to finish the work = 17/120=17 1/7days
C. 18/17
D. 19/17
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