Question

A person rides his bicycle 20km at an average speed of 10kmph, 30km at an average speed of 15km/hr and again travels 24km at an average speed of 8km/hr. His average speed for the entire trip is approximately:

Answer 1

Answer:

10.57 km/hr

Step-by-step explanation:

calculate a time in all different distance

add all the distance

for avg speed = total distance/calculate time

Answer 2

The average speed of the person is 12.33 km\hr.

Step-by-step explanation:

Given:

A person rides his bicycle 20 km at an average speed of 10 kmph, 30 km at an average speed of 15 km/hr and again travels 24 km at an average speed of 8 km/hr. His average speed for the entire trip is approximately .

Solution:

20 km at 20 kmph, time =  $\frac{20}{20}$= 1 hr,

30 km at 15 km/hr, time = $\frac{30}{15}$ = 2 hrs, 24 km at 8 km/hr, time = $\frac{24}{8}$= 3 hrs.

Average speed = total distance / total time =$\frac{(20 + 30 + 24)}{(1 + 2 + 3)}$

= $\frac{74}{6}$

= 12.33  km\hr.

Result:

If a boy rides his bicycle 10 km at an average speed of 12 km/hr and again travels 12 km at an average speed of 10 km/hr, find his average speed for the entire trip?

https://brainly.in/question/3366557