MAT Exam 2023 Paper

Concept:The distance covered in one hour is the speed of the train.The difference in one-hour distances is simply the difference in their speeds.Explanation:Train A covers $220$ km in $5$ hours.So, speed of Train A $= \frac{220}{5} = 44$ km/h.Thus, Train A covers $44$ km in one hour.Train B covers the same $220$ km in $1$ hour less, which is $5 - 1 = 4$ hours.So, speed of Train B $= \frac{220}{4} = 55$ km/h.Thus, Train B covers $55$ km in one hour.Difference in distances covered in one hour $= 55 - 44 = 11$ km.Since $11$ km is not listed among the options, the correct choice is None of these.Answer:$11$ km, i.e., option D.