1. A alone can do a piece of work in 10 days and B alone can do it in 15 days. In how many days will A and B together do the same work?
(a) 5 days
(b)6 days
(c) 8 days
id) 9 days
Answers
Answered by
0
Answer:
I think answer is 6
Step-by-step explanation:
hope it help you
Answered by
2
Answer:
b)6 days
Step-by-step explanation:
Work done by a in 1 day= 1/10
work done by B in 1 day =1/15
Work done by both in 1 day = 1/10+1/15
=5/30=1/6
(reciprocal it)
Both can do all work in 6 days.
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