a small airplane flies a straight line at the speed of 225 km/hrs. How long does it takes the plane to fly in 30 km in minute, hours and seconds?

1 answer

30 km (1 hour/225 km) = .1333333...
= (.1 + 1/30) hours

.1 hours = .1*60 minutes
= 6 minutes

(1/30) hours (60 min/hour)
=2 minutes

6 + 2 = 8 minutes