Carcass wrote:
The sum of n numbers is greater than 48. If the average (arithmetic mean) of the n numbers is
1.2, what is the least possible value of n?
enter your valueAverage of the n numbers = (sum of n numbers)/n
Let's see what happens when the sum EQUALS 48
We get:
1.2 = 48/n
In this case, n = 40 (since 48/40 = 1.2)
However, the question tells us that the sum of the n numbers is
greater than 48
So, x CANNOT equal 40
In fact, x must be greater than 40
So, the least possible value of n is 41
Cheers,
Brent
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Brent Hanneson – Creator of greenlighttestprep.com
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