Question

A car travels 21 km in 16 minutes. What is its average speed in km/h?

Answer 1

Answer:

78.6km/h

Step-by-step explanation:

Speed=distance÷time

distance=21km

time=16 minutes(convert into hour by dividing it with 60)

=16÷60=0.267

Speed=21÷0.267=78.65km/h

$speed = \frac{distance }{time}$

$speed = \frac{21}{0.267} = 78.6km(h$