A alone can do apiece of work in 12 days and B alone can do the same work in 15 days. A works alone for 4 days.In how many days will A and B together finish the remaining work
Answers
Answered by
1
nm/ n+ m
15*12/15+12
180/17
15*12/15+12
180/17
Answered by
0
180/70 hence,it is the answer
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