A man walks 1 km from his home to office in 20 minutes and returns in 30 minutes. Find out his average speed.

0.33 m/s

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0.99 m/s

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0.66 m/s

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1.333 m/s

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Solution

The correct option is C
0.66 m/s

Given, distance = 1 km

So, total distance = 2 km

Total time taken = 20 + 30 = 50 minutes

= 3000 sec

Avg speed $= \frac{total distance}{total time} = \frac{2000}{3000} = 0.66 m / s$

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A man walks 1 km from his home to office in 20 minutes and returns in 30 minutes. Find out his average speed.

The correct option is C 0.66 m/s Given, distance = 1 km So, total distance = 2 km Total time taken = 20 + 30 = 50 minutes = 3000 sec Avg speed =total distancetotal time=20003000=0.66m/s

The correct option is C
0.66 m/s

Given, distance = 1 km

So, total distance = 2 km

Total time taken = 20 + 30 = 50 minutes

= 3000 sec

Avg speed $= \frac{total distance}{total time} = \frac{2000}{3000} = 0.66 m / s$