Question

27) If 6 unskilled workers make 8 chairs in 4 days, then how many additional skilled workers should be hired,
who are 1.5 times as efficient as unskilled workers, to make 24 chairs in 6 days? / ​

Answer 1

Answer:

20 unskilled workers can finish a job in 50 hours. The same job can be finished by 25 skilled workers in 20 hours. If 10 unskilled and 10 skilled workers are employed, how long will they take to complete the same job?

33.33 hours

Given the parameters, skilled workers are twice as productive as unskilled workers [20x50=1000 v 25x20=500].

So, in the same 10 hours, skilled workers will perform twice as much work as unskilled workers:

((Skilled Hours x 2) + (Unskilled Hours)) x 10 = 1000

Hours = 33.33

USE THIS METHOD

Answer 2

Answer:

2 skilled workers extra