Two aircraft are flying toward each other , both are flying at a spped of 450 mph. With a distance of 45 miles between them, how long will it take before the aircraft meet?

Answer 1

the two planes are approaching at 900 mph
So, since time = distance/speed,

45/900 = ? hours
maybe an answer in minutes will seem better.

Answer 2

The answer is apparently 2 minutes and 30 seconds but I cant work out how to figure this out thanks.

Answer 3

The answer is 1/20 hour or 3 minutes.
Apparently the answer key is wrong.

Answer 4

3 minutes