Question

A take 12 hrs to make publication b take 10 hrs to make publication. find the time taken by them to make two publications working independently?

a.12 hours

b.11 hours

b.22 hours

d.11 hours 40 minutes

Answer 1

option b 22 hours is right according to my opinion

Answer 2

If the A starts the publication, B also starts the publication at the same time.

A complete the publication after 12 hours.

At that time, B also complete the publication but it takes only 10 hours.

Therefore, the total time taken of the A and B to complete the publication is 12 hours.