A man is walking at a speed of 12 km/h. After every km, he takes rest for 3 minutes. How much time will he take to cover a distance 6 km?

45 minutes

Time = \(\frac{Distance }{Speed}\)

= \(\frac{6  }{12}\)

= 0.5 hour

= 30 minutes

After every km man takes rest for  3 minutes . SO , During 6 km he stops for 5 times .

Total rest time = 3 × 5 = 15 minutes

Total time taken = 30 + 15 = 45 minutes