Correct Answer: Option B

Explanation

Let the number of students that like both Science and History = x

Number of Science only = 35 - x

Number of History only = 30 - x

35 - x + 30 - x + x = 50

65 - x = 50

x = 15

P(Science and History) = \(\frac{15}{50} = 0.30\)

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