Question

there were 90 runners to start a race. in the firdt half of the race, 1/6 of them dropped out. in the second half of the race, 1/3 of the remaining runners dropped out. how many runners finished the race?​

Answer 1

50

Explanation:

1/6 of 90 is 15 (1/6x90/1 = 90/6 which equals 15)

then, subtract that from 90 to give you the amount of runners that left in the first half (90-15= 75)

then 1/3 of 75 is 25 (1/3x75/1= 75/3which equals 25)

and you subtract the runners that left from the total amount of runners (75-25=50)