Average age of A and B is 30 years, that of B and C is 32 years and the average age of C and A is 34 years. The age of C is:

Average age of A and B is 30 years, that of B and C is 32 years and the average age of C and A is 34 years. The age of C is:

  • (A) 33 years
  • (B) 34 years
  • (C) 35 years
  • (D) 36 years
  • Given:
  • A + B = 60 B + C = 64 C + A = 68 Adding the above three equations:
  • (A + B) + (B + C) + (C + A) = 60 + 64 + 68 2(A + B + C) = 192 Therefore:
  • A + B + C = 96 And as A + B = 60, Therefore C = 96 - 60 = 36 years
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Related MCQs:

 ‘NATO’ is an abbreviation of:

  • (A) North Atlantic Treaty Organization
  • (B) Non-Aligned Treaty Organization
  • (C) Non-Aligned Trading Organization
  • (D) North American Transport Organization

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