Problema Solution
last week jeff noted that 60 of the 200 flights to airport A flying out of airport B departed on time. During the next week, 600 flights left airport B for airport A. If the same ratio holds, how many of those flights would he expect to depart on time?
Answer provided by our tutors
let 'x' the number of flights departing on time during the second week
60 : 200 = x : 600
by solving we find
x = 180 flights departed on time
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