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Three boys, P, Q, R an three girls S, T, U are to be arranged in a row for a group photograph. What is the probability that boys and girls sit alternatively?

Options

  1. A4 5
  2. B1 10
  3. C5 6
  4. D1 7

Correct answer

B. 1 10

Step-by-step solution

Since boys & girls seats alternatively Required probability = 2 3 3 2 2 6! = 1 10

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