A can do a piece of work in 32 days. When he had worked for 4 days. B joined him. If complete work was finished in 24 days in how many days B alone can finish that work?
a) 80 days b) 40 days
c) 60 days d) 48 days
Answers
Answered by
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Hey mate here's your answer :
option B)40 days
PLZ MARK AS BRAINLIEST
Answered by
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Answer:
a can do a work in 32 days
A one day work is 1/32
A 4 day work =1/32 ×4
=1/8
remaining work =1-1/8
=7/8
whole work complete in 24 days
A alone work for 4 days
(A+B) can do 7/8 work in 20days
(A+B) can whole work in=20×8/7
=160/7
B one day work is =(A+B) -A
=7/160 - 1/32
=(7 - 5)/160
=2/160
=1/80
B can complete whole work in 80 days
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