Respuesta :

Answer:

50

Step-by-step explanation:

Total- 90 runners

first half- 1/6 of 90 dropped out, so 15 dropped out.

There are 75 left.

Then, 1/3 of 75 dropped out, so 25

75-25=50

There are 50 runners still in the race

Hope this helps!

let me know if it does and if it was right.