Multiple choice

Passage

Directions: Study the following information carefully and answer the question. There are 7 persons, namely, A, B, C, D, E, F and G. They all are made to stand according to their weights in descending order from left to right. B is the second lightest person. A weighs between G and B. F is the heaviest. D has an equal number of persons on either side who are heavier and lighter than him. D has a weight of 85 kg. E is immediate heavier than B. A is heavier than C. The lightest person has a weight of 65 kg.

What is the average weight of D and C?

  1. 80 kg

  2. 75 kg

  3. 65 kg

  4. 50 kg

  5. 85 kg
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Ordering by weight (descending): F > D > A > G > E > B > C. D is 85kg. Lightest (C) is 65kg. Average of D and C = (85 + 65) / 2 = 75kg.

AI explanation

Because F is the heaviest and D has an equal number of people on either side, the descending weight order from 1 to 7 is F, A, G, D, C, E, B. The lightest person is C at 65 kg, and D weighs 85 kg. Using the basic average formula, the average weight of D and C is (85 + 65) / 2 = 150 / 2 = 75 kg.

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