Question

you timed your apprentice and it took him 21/2 hours to set twenty 2x4 lay-in fixtures. if he continues at this pace, how long will it take him to set another 460 of these fixtures?

Answer 1

483/2

Explanation:

so the rate is 21/2 hours for 20 fixtures.

we just multiply by 460÷20=23.

21/2×23=483/2 of 241.5 hours.