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Two-thirds of children are in the age group 1-12 years. Of this, if three-fourths are in the age group of 1-8 years, find the fraction of children in the age group of 9-12 years.
- A1/3
- B1/4
- C1/6
- D1/2
Answer not set
Discussion 1
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CCommunity
⇒ Children in age group 1 - 12 = 2/3
⇒ Children in age group 1 - 8 = (3/4) × (2/3) = 1/2
⇒ Children in age group 9 - 12 = (2/3) - (1/2) = 1/6
⇒ Children in age group 1 - 8 = (3/4) × (2/3) = 1/2
⇒ Children in age group 9 - 12 = (2/3) - (1/2) = 1/6