Question

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Answer 1

Answer:

Rajiv can do a piece of work in one day = 1 /15.

Anuj can do a piece of work in one day= 1 / 18.

They can work together in one day

=1/15+1/18

=11/90

They can work together in 5 day

=11/90×5

=11/18.

Remaining work=1-11/18=7/18.

Anuj can do alone in

=7/18×18=

7days