The chart above describes departures from a certain airport on a certain day. If 1200 flights were delayed, how many flight departed on time? 


(a) 
250 
(b) 
300 
(c) 
350 
(d) 
400 
The chart above describes departures from a certain airport on a certain day. If 1200 flights were delayed, how many flight departed on time? 


(a) 
250 
(b) 
300 
(c) 
350 
(d) 
400 
Percentage of delayed flights = ()% = 75%.
Percentage of ontime flights =
Let the total number of flights be
Then, 75% of