Question

An object 40km in first 1/2 hour 8km in second 1/2 hour 50km in third 1/2 hour and 30km in fourth 1/2 hour. The average speed is​

Answer 1

Answer:

The average speed of the object is 64km/h

Explanation:

total distance = 40+8+50+30 = 128km

total time = 0.5+0.5+0.5+0.5 = 2h

$Average speed = \frac{Total distance}{total time}\\=\frac{128}{2}$

=64km/h