Question

On a typicalday, flights at a local airport arrive at a rate of 10 every 15 minutes. At this rate, how many flights would you expect to arrive in 1 hour

Answer 1

so the best way to set this up would be to do cross multiplication. there are 10 flights out of every 15 minutes so the first ratio is 10/15

there are 60 minutes in one hour and you need to know how many flights per hour so the next ratio would be ?/60

10/15=?/60

10x60/15

the answer will be 40 flight per hour