Question
What is the average (arithmetic mean) height of the n people of a certain group?
(1) Height of the tallest person in the group is 6 feet 2.5 inches and the average height of the rest of the people in the group is 5 feet 10 inches
(2) The sum of the heights of the n people is 178 feet 9 inches
Answer: Option C
:
C
From statement 1: 74.5+(n−1)70n
From statement 2: 74.5+(n−1)70=2145
Using both the statements, average height of the n people can be determined.
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:
C
From statement 1: 74.5+(n−1)70n
From statement 2: 74.5+(n−1)70=2145
Using both the statements, average height of the n people can be determined.
Was this answer helpful ?
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