Question

 A speeding car traveling at 40 km/hr decides to slow down to 30 km/hr after covering half the distance. What is the average spe

Answer 1

a speeding car travelling at = 40 km/hr

the driver slow down = 30 km / hr

40 + 30 / 2

70 / 2 = 35 km

Answer 2

The average speed of car is 35 km/hr

Solution:

Given that,

A speeding car traveling at 40 km/hr decides to slow down to 30 km/hr after covering half the distance

To find: average speed of car

The average speed is the average of 40 km/hr and 30 km/hr

Which means,

$Average \ speed = \frac{40+30}{2} \\\\Average \ speed = \frac{70}{2} \\\\Average \ speed = 35$

Thus average speed of car is 35 km/hr

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