Question

A school bus during morning pickups to calculate its average speed between 2.8 km and 4.2 km.

52 km/h


55 km/h


42 km/h


50 km/h

Answer 1

c

Step-by-step explanation:

Answer 2

Option (c)

The average speed between 2.8 km and 4.2 km is 42 km/h

Step-by-step explanation:

Given, the distance between 2.8 km and 4.2 km is 4.2 - 2.8 = 1.4 km

Time (in hours) between 2.8 km and 4.2 km

= 0.084 – 0.051

= 0.033 hr

Speed =
`(Distance)/(Time)`

Speed =
`(1.4)/(0.033)`

Speed = 42.4 km/hr = 42 km/h (rounded to nearest)

Therefore, the average speed between 2.8 km and 4.2 km is 42 km/hr

Hence, Option (C) is correct