Question

a can do a piece of work in 20 days and b in 16 days. they worked together for 5 days and then a left. in how many days will b finish the remaining work?
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a can do a piece of work in 20 days and b in 16 days. they worked together for 5 days and then a left. in how many days will b finish the remaining work?​

Answer 1

Answer:

A's one day work = 1/20

B' one day work = 1/16

A and B one day work together = 1/20 + 1/16

= 4 + 5/80

= 9/80

A and B 5 days work = 9/80 ×5

= 9/16

work left = 1- 9/16

= 16 - 9/16

= 7/16

B can do 1 work in = 16 days

7/16 can be done in. = 16 × 7/16

= 7 days

so , B will do remaining work in 7 days.

Answer 2

Answer:

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