Question

A man used his car. The initial and final odometer readings are 4849 and 5549 respectively. The journey time is 25h. What is his average speed during the journey?

Answer 1

The distance travelled is 5549 - 4849 = 700 Km (the difference of the odometer readings)
The average speed = Total distance travelled / Total time taken = 700 /25 = 28 Km/hr

Answer 2

AVERAGE SPEED IS 28 km/hr.

Given:

• Initial reading = 4849 km
• Final reading = 5549 km

• Time taken = 25 hr

To find:

Average speed of car in journey?

Calculation:

Average speed of an object is defined as the ratio of the total distance by the total time.

$avg. \: s = \dfrac{distance}{time}$

$\implies avg. \: s = \dfrac{final \: reading -initial \: reading }{time}$

$\implies avg. \: s = \dfrac{5549 - 4849 }{25}$

$\implies avg. \: s = \dfrac{700}{25}$

$\implies avg. \: s = 28 \: kmph$

So, average speed of car is 28 km/hr