The average (arithmetic mean) height of five of Peter's friends is 70 inches. What will be the new average height if...

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by BTGmoderatorLU » Wed Jan 20, 2021 3:17 am

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Source: Manhattan Prep

The average (arithmetic mean) height of five 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

The OA is A

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Source: Beat The GMAT — Data Sufficiency | Wed Jan 20, 2021 3:17 am

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