Question

A man walked at speed of 8 km/h to a place and returned back with 6 km/h, his average Speed will be​

Answer 1

Answer:

If the distance traveled is same, then,

If x and y are two speeds, then,

Average speed = 2xy/x+y

Hence, Average speed = 2×8×6/8+6

= 96/14Km/h

= 6.857.. km/h

Explanation:

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Answer 2

Solution :-

We know that, when two speeds are given as a km/h and b km/h ,

• Average speed of the journey = 2ab/(a + b)

given that,

• a = 8 km/h
• b = 6 km/h

so,

→ Average speed = 2ab/(a + b)

→ Average speed = (2 * 8 * 6)/(8 + 6)

→ Average speed = 96/14

→ Average speed = 48/7

→ Average speed ≈ 6.86 km/h (Ans.)

Hence, the average speed of the given man is 6.86 km/h (approx) .

Learn more :-

if an airplane travels a distance of 500km in 5 hours what is its average speed?

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