Tasha, Tess and Trudy need to spend a total of 60hrs. over the next year to complete a project in their appartment. How much time will Trudy spend if they have agreed to split the time in the ratio 7 to 4 to 9, respectivley?

Question

I have no idea how to even start.

Answer 1

Of 20 hours, Tasha, tess, and Trudy will spend 7;4;and 9 hours each.

How many 20 hrs are in 60?

Answer 2

30 hours

Answer 3

No. There are three 20's in 60.

so trudy= 3*9