A truck driver travels 55 km in 1 hour he then drives a speed of 35 km/h for two hours next he drives 175 km in three hours. what was his average speed?

first hour = 55 per hour.
= 55

second and third = 35 per hour.
= 70

fourth, fifth and sixth = 175 per hour.
= 525

average speed = (55 + 70 + 525) / 6
= 650 / 6
= 108.33 km per hour

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Tringa0 Tringa0 · Answer 2 · 2021-10-19T10:33:35+02:00

The average speed of a truck driver is 50 km/hr.

Given:

A truck driver travels 55 km in 1 hour he then drives at a speed of 35 km/h for two hours next he drives 175 km in three hours

To find:

The average speed of a truck driver.

Solution:

Distance traveled by a truck driver in 1 hour = 55 km

Speed of a truck driver after in next 2 hours =35 km/hr

Distance traveled by a truck driver in these 2 hours = [tex]35 km/hr \times 2= 70 km[/tex]

Distance traveled by a truck driver in last 3 hours = 175 km

Total distance traveled by truck driver :

[tex]= 55 km + 70 km + 175 km = 300 km[/tex]

Total time taken by the truck:

[tex]=1 hr + 2 hr + 3 hr = 6 hr[/tex]

The average speed of the truck driver:

[tex]=\frac{\text{Total distace covered}}{\text{Total time taken}}\\\\=\frac{300 km}{6 hr}=50 km/hr[/tex]

The average speed of a truck driver is 50 km/hr.

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