Problema Solution
There were 54 runners to start a race. In the first half of the race, two thirds of them dropped out. In the second half of the race, one sixth of the remaining runners dropped out. How many runners finished the race?
Answer provided by our tutors
two thirds of them dropped out:
(2/3)54
one sixth of the remaining runners dropped out
(1/6)(2/3)54
54 - (2/3)(54) - (1/6)((2/3)54)) = 12
12 runners finished the race