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AP EAMCET202421 May 2024Morning ShiftMathematicsProbabilityActual

In a class consisting of 40 boys and 30 girls. 30 % of the boys and 40 % of the girls are good at Mathematics. If a student selected at random from that class is found to be a girl, then the probability that she is not good at Mathematics is

Options

  1. A3 5
  2. B2 5
  3. C3 10
  4. D7 10

Correct answer

A. 3 5

Step-by-step solution

40 % of girls are good in maths 40 100 30=12 girls are good in maths 18 girls are not good at mathematics Required probability = 18 30 = 3 5

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