Question

What is the average height of the class?
(I) Average height of the class decreases by 1 cm if we exclude the tallest person of the class whose height is 56 cm.
(II) Average height of the class increases by 1 cm if we exclude the shortest person of the class whose height is 42 cm.

• A. Data in Statement I alone is sufficient to answer the question but the data in Statement II alone is not sufficient to answer the question.
• B. Data in Statement II alone is sufficient to answer the question but the data in Statement I alone is not sufficient to answer the question.
• C. Data in statements I and II together are necessary to answer the question.
• D. Data in statements I and II together is not sufficient to answer the question.

Answer 1

Answer: (C)

Data in statements I and II together are necessary to answer the question.

Answer 2

The correct option is (C): Data in statements I and II together are necessary to answer the question..