Harry moves from A to B at a speed of 40km/h and a same distance from B to C at a speed of 60km/h and he returns along the same path from C to A at a speed of 70km/h. Find the average speed in the entire journey.
Pls explain it
Answers
Answer:
60 km/h
Explanation:
Speed in moving from A to B = 40 km/h
Speed in moving from B to C = 60 km/h
Speed in moving from A to C = Average of 40 km/h and 60 km/h
Average speed = (40 + 60)/2
= 100/2
= 50 km/h
So, Harry moves from A to C with an average speed of 50 km/h.
Speed in moving from C to A = 70 km/h
Now, the average speed in the entire journey = Average of the speeds in moving from A to C and C to A.
= (50 + 70)/2
= 120/2
= 60 km/h
So, the average speed of the entire journey is 60 km/h.
Answer:
60 km/h
Explanation:
Speed in moving from A to B = 40 km/h
Speed in moving from B to C = 60 km/h
Speed in moving from A to C = Average of 40 km/h and 60 km/h
Average speed = (40 + 60)/2
= 100/2
= 50 km/h
So, Harry moves from A to C with an average speed of 50 km/h.
Speed in moving from C to A = 70 km/h
Now, the average speed in the entire journey = Average of the speeds in moving from A to C and C to A.
= (50 + 70)/2
= 120/2
= 60 km/h
So, the average speed of the entire journey is 60 km/h.