The average (arithmetic mean) height of five of Peter`s friends is 70 inches. What will be the new average height if Peter is included in the group?
(1) Peter`s height is 1 foot greater than the average height of his five friends (1 foot = 12 inches).
(2) Peter is 5 inches taller than the tallest of his five friends.
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AStatement (1) ALONE is sufficient, but statement (2) alone is not sufficient.
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BStatement (2) ALONE is sufficient, but statement (1) alone is not sufficient.
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CBoth statements TOGETHER are sufficient, but NEITHER one ALONE is sufficient.
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DEACH statement ALONE is sufficient.
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EStatements (1) and (2) TOGETHER are NOT sufficient.
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正确答案: A