A can do a work in 15 days and B in 20 days. If they work on it together for 4 days, then the fraction of the work that is left is? - Study24x7
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Goraksha Dadhich
14 Mar 2019 10:12 AM study24x7 study24x7

A can do a work in 15 days and B in 20 days. If they work on it together for 4 days, then the fraction of the work that is left is?

A

1/10

B

1/4

C

7/15

D

8/15

Banking Railways UPSC Sciences
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