Question

Trisha ran 10 km in 2.5h. Jason ran 7.5 km in 2h. Olga ran 9.5 km in 2.25h. Who had the fastest average speed.

Answer 1

Olga had the fastest average speed among the three runners.

Step-by-step explanation:

To find the fastest average speed, we need to divide the distance each runner ran by the time it took them. Trisha ran 10 km in 2.5 hours, so her average speed is 10 km / 2.5 h = 4 km/h.

Jason ran 7.5 km in 2 hours, so his average speed is 7.5 km / 2 h = 3.75 km/h. Olga ran 9.5 km in 2.25 hours, so her average speed is 9.5 km / 2.25 h = 4.22 km/h.

Therefore, Olga had the fastest average speed among the three runners.

Answer 2

Hello!

10 km in 2.5h.

2,5h = 150mn

150mn -> 10km

1 mn -> 10/150

60mn -> (10*60)/150

=>4km/h

Jason ran 7.5 km in 2h.

7,5 /2 =3,75

=> 3,75km/h

Olga ran 9.5 km in 2.25h.

2,25h = 120 + 0,25 * 60 =>135mn

135mn -> 9,5km

1mn -> 9,5/ 135

60mn -> (9,5*60)/ 135 =>4,22km/h

Who had the fastest average speed.: Olga