Question

The average number of bends which an electrician can finish per hour on a defective conduit bender is 2/3 the number that can be finished per hour on a bender in good repair. If it requires 45 minutes to bend 9 conduits with a defective bender, how many bends per hour can be finished with a bender in good repair?

Answer 1

the working bender takes 2/3 as long to do the work
2/3 * 45 = 30 minutes for 9 bends
so, how many in an hour?

Answer 2

Thank you