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Doctors Medicines MCQs Q&A

  1. 36
  2. 54
  3. 108
  4. 72
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1 Answers

Option 1 : 36

Let the numbers be x, y and z

As per the given data,

y = 3x

x = y/3

⇒ y = 2z

⇒ z = y/2

Given that average of the three numbers is 66

⇒ (x + y + z)/3 = 66

⇒ (y/3 + y + y/2)/3 = 66

⇒ (2y + 6 y + 3y)/(3 × 6) = 66

⇒ 11y = 66 × 18

⇒ y = 108

∴ First number x = y/3 = 108/3 = 36

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