Question

A and b can do a job in 10 days. B and c can do the same job in 15 days. If all three worked together complete the work in 6 days, then in how many days can b complete the whole job?

Answer 1

A and B can complete the work in= 10 days.

•

• • The part of the work they can complete in 1 day= 1/10th part

B and C can complete the same work in = 15 days

•

• • The part of the work they can complete in 1 day = 1/15th part

•

• • The part of the work the all can complete in 1 day = (A+B)+(B+C)

=1/10+1/15

=5/30

=1/6

•

• •The part of work B can complete alone in 1 day = 1/6-1/15

=7/30

The answer is 4.28 or approx 4 days.

I THINK SO