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Doctors Medicines MCQs Q&A

  1. 3 ∶ 5
  2. 4 ∶ 7
  3. 1 ∶ 2
  4. 5 ∶ 7
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1 Answers

Option 1 : 3 ∶ 5

Number of people who participated in Tambola n(T) = 25

Number of people who participated in musical chair n(M) = 35

Number of persons who participated in both the games n(T ⋂ M) = n(T) + n(M) – n(T ⋃ M) = 25 + 35 – 50 = 10

∴ Number of persons who took part only in Tambola n(T) = n(T) – n(T ⋂ M) = 25 – 10 = 15

Number of persons who took part only in Musical chair n(M) = n(M) – n(T ⋂ M) = 35 – 10 = 25

∴ Required ratio = 15/25 = 3/5 or 3 ∶ 5

∴ The ratio between the number of persons who participated in Tambola only and Musical chair only is 3 ∶ 5

 

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