The first flight out of Phoenix airport had a late departure. If the next three flights departed on-time, how many subsequent flights need to depart from Phoenix on-time, for the airport's on-time departure rate to be higher than 50%?	Choose the correct choice from the following choices
A) 3
B) 5
C) 7
D) 8
E) 6
We need on-time departure rate to be higher than 5/10, so it should be at least 6/11, which means that 6 out of 11 flights must depart on time. Since for now 3 out of 4 flights departed on time then  6-3= 
<gadget id="calculator"> 6-3</gadget>
<output>3</output>
3 subsequent flights need to depart on-time.   3nswer: 3
<result>A</result>
The first flight out of Phoenix airport had a late departure. If the next three flights departed on-time, how many subsequent flights need to depart from Phoenix on-time, for the airport's on-time departure rate to be higher than 50%?