Question

A train travels 190 km in 3.0 hr, and then 120 km in 2.0 hr. What is its average speed? A) 60 km/hr B) 65 km/hr C) 70 km/hr D) 75 km/hr

Answer 1

The closet to the correct answer of 62 km/hr is A) 60 km/hr.

Step-by-step explanation:

The average speed is the total distance divided by the total time.

Distance travelled:

1) (190 km)

2) (120 km)

Total Distance = 310 km

Time Travelled:

1) 3.0 hr

2) 2.0 hr

Total Time = 5.0 hr

Average Speed:

(310 km)/(5.0 hr) = 62 km/hr