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    • Question

      A cyclist maintained an average speed of 22 km/hr for the

      first 18 hours of a race. In the next 6 hours, his average speed was ‘x’ km/hr, so that his overall average speed became 25 km/hr. Find the value of 'x'.
      A 93 Correct Answer Incorrect Answer
      B 34 Correct Answer Incorrect Answer
      C 69 Correct Answer Incorrect Answer
      D 77 Correct Answer Incorrect Answer

      Solution

      ATQ,

      {22 × 18 + 6 × x}/(18 + 6) = 25

      Or, 6x + 396 = 25 × 24 = 600

      Or, 6x = 204

      Or, x = 34

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