A and B can do a piece of work in 6 days and 4 days respectively they started the work worked at it for two days and then was joined by B find the total time taken to complete the work
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Answer:
A started the work and worked at it for 2 days. ... then joined by B. Find the total time taken to finish the work. ... 2 days by A alone + 6 days by both Aand B = 8 days.
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29
Answer:
LCM of 6 and 4 = 12
efficiency = 2 & 3
in first two days A complete = 2*2 = 4 unit.
left work = 12-4 = 8 unit
now B also joins ,
so, together they will take to complete rest work = 8/5 = 1(3/5) days ..
Total number of days to complete whole work = 2+1(3/5) = 3(3/5) days (Ans)
(Mark as brainlist)
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