Question

A can do a piece of work in 10 days and
B can do it in 15 days, how long will A and B,
working together,take to do the work?
a) 6 days b) 8 days
c) 10 days d) 12 days​

Answer 1

Answer:

Step-by-step explanation:

1/10 + 1/15

Lcm of 10 and 15 =30

=3+2/30

=5/30

=1/6

Hence 6days.