Walking 6/7th of his usual speed, a man is 12 minutes too late. What is the usual time taken by him to cover that distance?
Q1. Walking 6/7th of his usual speed, a man is 12 minutes too late. What is the usual time taken by him to cover that distance?
Answer: 1 hr 12 min
Explanation: At 6/7 of usual speed, time is 7/6 of usual. Extra time = 1/6 of usual = 12 min, so usual time = 72 min = 1 hour 12 minutes.