Question

In a marathon 90% of runners managed to complete it and 30% of them were men. If 270 men completed, how many total runners began the maratho?

Answer 1

Step-by-step explanation:

* completed = men - (2)

Given the no. of men = 270, we can back substitute as follows:

0.3 * completed = 270

completed = 270/0.3

completed = 900

Now, using the first equation,

0.9 * total = 900

total = 900/0.9

total = 1000,