Last week Jeff noted that 120 of the 240 flights to airport A flying out of airport B departed on time. During the next week 400 flights left airport B fo

Question

Last week Jeff noted that 120

of the 240

flights to airport A flying out of airport B departed on time. During the next week 400

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 1

120 of 240 is 50%. It's half. If the ratio holds, you get half your flights on time next week.

 

And half of 400 is 200.