Q. A man is walking at a speed of 10 km/hr. After every km, he takes a rest for 5 minutes. How much time will he take to cover a distance of 5 km?
Answer: 50 minutes
Notes: Time taken in covering 5 km $latex = \frac{5}{10} = \frac{1}{2}\ hour = 30\ minutes &s=1$ That person will take rest for four times. ∴ Required time = (30 + 4 $latex \times$ 5) minutes = 50 minutes. Hence option [B] is correct answer

1