# A motorcyclist travels at 60 km per hour for 2 hours and then 75 km per hour for 4 hours. What is his average speed?

- 75 km per hour
- 72 km per hour
- 70 km per hour
- 68 km per hour

**Answer: (3) 70 km per hour **

**Solution:-**

A motorcycle travels at 60 km per hour for 2 hours.

Then, the covered distance = 60 x 2

= 120 km

The distance covered by motorcycle in 4 hours with 75 km per hour = 75 x 4

= 300 km

Total distance covered by motorcycle = 120 + 300

= 420 km

Total time taken by motorcycle = 2 + 4

= 6 hours

Then, the average speed of the motorcycle = 420/6

= 70 km/hour

Hence, the correct answer is option (3) 70 km per hour.