Question

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

Answer 1

Answer:

1000 runners began the race.

Step-by-step explanation:

Let the total number who began the race be x.

Those who completed the race were 90% of x which is = 0.90x × 0.30 = 0.27x

The number of men who completed the race are 270 men.

From the workings above we have the number of men who completed the race.

0.27x = 270

x = 270/0.27

x = 1000

Therefore the number of people who began the race were 1000 both women and men.