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      Question

      Two buses ‘R’ and ‘S’, which were 880 km apart,

      started traveling towards each other at the same time and met after 5.5 hours. If the speed of bus ‘R’ is 12 km/h more than the speed of bus ‘S’, then find the speed of bus ‘R’.
      A 95 Correct Answer Incorrect Answer
      B 65 Correct Answer Incorrect Answer
      C 86 Correct Answer Incorrect Answer
      D 88 Correct Answer Incorrect Answer

      Solution

      ATQ,

      Sum of the distance travelled by both buses = 880 km

      Let the speed of bus S = ‘x’ km/h

      So, speed of bus R = ‘x + 12’ km/h

      So, 5.5x + 5.5(x + 12) = 880

      Or, 5.5x + 5.5x + 66 = 880

      Or, 11x = 814

      Or, x = 74

      So, the speed of bus R = (x + 12) = (74 + 12) = 86 km/h.

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