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There are 32 students in a class. 8 boys out of 20 wear caps, and 8 girls out of 12 wear spectacles. Find the probability that a student is either a boy who wears a cap or a girl who doesn't wear spectacles.

Answer :

Answer:

Boy = 40%

Girl = 66.6%

Step-by-step explanation:

1) Work out probability that student is a boy who wears cap

8 boys out of 20 wears a cap so to find the probability we have to do 8 divided by 20

  • 8 ÷ 20 = 0.4
  • 0.4 × 100 = 40%

2) Work out probability for girls who doesn't wear spectacles

To find the probability of girls who doesn't wear spectacles we have to do 8 divided by 12

  • 8 ÷ 12 = 0.666...(recurring)
  • 0.666...(recurring) × 100 = 66.6%

Hope this helps, have a lovely day! :)

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