Question

A window-washing crew can finish 15 windows in 18 minutes.

Answer 1

Answer:

34321.2 min

Step-by-step explanation:

The Burj Khalifa has in total 28601 windows. On the other hand, we are told the window-washing crew can wash 15 windows in 18 minutes. So, we can use the Rule of three to solve this problem:

If:

15 windows ---- 18 min

28601 windows ---- ?

Then:

? = (28601windows)(18min)/15windows

? = 34321.2min

Answer 2

Answer:

34321.2 min

Step-by-step explanation: