1) Walking at 56 of its usual speed, a train is 10 minutes too late. Find its usual time to cover the journey. A) 60 min. B) 50 min. C) 70 min. D) 90 min. E) 100 min. Answer: Option BExplanation:New speed =56 of the usual speed New time taken =65 of the usual time so, 65 of the usual time - usual time = 10 mn. ⇒ 15 of the usual time = 10 min ⇒ usual time = 50 min.