1. A can do a piece of work in 10 days and B in 15 days. If both of them work together,
how much time will they take to finish the work?
20 doua and 30 days resnectively, if they work
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0
Answer:
20 days
Step-by-step explanation:
20 days
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Answer:
A can do a piece of work in 10 days and B can do it 15 days. If both of them are working together, half of the work can be finished in?
LCM of 10 and 15 is 30.
A can do (1/10th) of the work in one day (or 3/30th).
B can do (1/15th) of the work in one day (or 2/30th).
Working together, A and B can do (3/30)+(2/30) = 5/30th of the work in one day. So they would require 30/5 or 6 days to complete the task. Therefore in 3 days A and B together would have done half of the entire work.
Step-by-step explanation:
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