A can do a work in 14 days B can do in 21 days. They begin together but 3 days before the completion of the work A leaves off. The total number of the days to complete the work is:
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Make one correction in above image
A's one day work = 3
B's one day work=2
Last three day only b works
=2x3=6
Work left =42-6=36
A+b=5
Time=36/5=7 1/5
Total time =10 1/5 day
This is ur ans hope it will help you in case of any doubt comment below
A's one day work = 3
B's one day work=2
Last three day only b works
=2x3=6
Work left =42-6=36
A+b=5
Time=36/5=7 1/5
Total time =10 1/5 day
This is ur ans hope it will help you in case of any doubt comment below
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tnwramit1:
I did one mistake
wait
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