A does a work in 10 days and B does the same work in 15 days. In how many days they together will do the same work? [RRB 2003]
A) 5 days
B) 6 days
C) 8 days
D) 9 days
Answers
Answered by
0
Answer:
5 days A and B does work in 5days
Answered by
2
Step-by-step explanation:
A can do a given work in 10 days.
A's 1 day work= 1/10 part
B can do the same work in 15 days.
B's 1 day work= 1/15 part
(A and B) 's 1 day work= 1/10+1\15 part
= 5/30 part
= 1/6 part
A and B can do the same work in 6 days.
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