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Since, the time taken by A and B is same, therefore the ratio of the distance covered by them will be equal to the ratio of their speeds. Therefore, ratio of the distance covered by A and B = 30:40 = 3:4 Let the distance covered by A and B be 3x km and 4x km According to the question, 4x – 3x = 20 Or, x = 20 Therefore, distance between them before starting = 3x + 4x = 7x = 140 km
92, 88, 79, 63, 40
6, 22, 76, 314, 1580, 9600
6, 24, 125, 720, 5040, 40320
7, 27, 10, 32, 17, 37
63, 124, 215, 345, 511, 728
13, 16, 24, 39, 64, 98
2.5, 15, 81, 325, 976, 1953
-25, -9, 116, 152, 495, 625
Find the wrong number in the given series.
24, 50, 96, 198, 388, 794