Question

type 1 workers can do three times the work of type 2 workers. Twelve type 1 workers can complete a task in 10 days . How many days would it have taken 4 type 1 and 8 type 2 workers to complete the same task

Answer 1

Answer:

Type 1=3 type 2

12 type 1 can do a work in 10 days.

So, 12*3 type 2 workers can do a work in 10 days.

In 1 day type 2 workers can do a work in 10/36

Now,

4 type 1 =4*3 type 2=12 type 2 workers.

So, 12+8 type 2 workers can do the work in 10/36*20=5.5 days.