Question
If the speed of Train A is six times to that of Train B
and takes 15 hours less than Train A. Find the speed of Train B if the distance travelled by them was 720 km each.Solution
According to the question, Let the speed of Train A= 4S kmph Let the speed of Train B = S kmph              Train A      Train B Speed       6               1 Time         1               6 Time difference = 5 = > 5 == 15 hours => 1 == 3 hours Time taken Train B = 6 × 3 = 18 hours Speed of Train B = 720/18 = 40 kmph
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