Question
The speed of train X is 25% more than the speed of train
Y. The time taken by train X to cover P km is z hours, and train Y covers the same distance in (z + 1) hours. If both trains run towards each other from (P – 18) km apart and meet after 2 hours, find the speed of train X.Solution
Speed of train Y = 4k Speed of train X = 4k * 125/100 = 5k P/4k = (z + 1) P/5k = z 4k * (z + 1) = 5kz 4k + 4 = 5k z = 4 (P – 18)/9k = 2 P – 18 = 18k 20k – 18 = 18k k = 9 Speed of train X = 5 * 9 = 45 kmph
More Quant Miscellaneous Questions
100, 75, 59, 55, 46, 45
30, 42, 48, 54, 65, 81, 126
96, 480, 120, 360, 150, 750
412, 320, 241, 169, 106, 52
- Find the wrong number in the given number series.
226, 353, 522, 739, 990, 1341 5000, 2000, 800, 320, 128, 52.2
- Find the wrong number in the given number series.
5, 25, 30, 90, 92, 86 23Â Â Â 30Â Â Â Â 44Â Â Â Â 65Â Â Â Â Â 92Â Â Â Â Â 128
- In the given number series, find the wrong number.
81, 27, 9, 6, 1, 1/3, 1/9 12, 10, 23, 65, 265, 1289Â
