A worker reaches his factory 15 minutes late if he walks at 4 km/h, and 10 minutes early if he walks at 6 km/h. Find the distance to his factory. MCQ with Answer and Explanation

Explanation:
Time = 8 minutes = 480 seconds. Speed = 2400 / 480 = 5 m/s. Converting to km/h = 5 * (18/5) = 18 km/h.

Explanation:
Average Speed = 2xy / (x + y) = (2 * 45 * 90) / (45 + 90) = 8100 / 135 = 60 km/h.

Explanation:
Total distance = 100 + 150 = 250 km. Time 1 = 100 / 40 = 2.5 hours. Time 2 = 150 / 50 = 3 hours. Total time = 5.5 hours. Average speed = 250 / 5.5 = 45.45 km/h.