2007 iTest Problems/Problem 1
Contents
Problem
A twin prime pair is a set of two primes such that is greater than . What is the arithmetic mean of the two primes in the smallest twin prime pair?
Solution
We consider the first few primes. . isn't a prime, so this isn't a set of twin primes.
. is a prime, so the answer is .
Cheap Solution
Note that is the only answer choice offered, so you must choose it.
See Also
2007 iTest (Problems, Answer Key) | ||
Preceded by: First Question |
Followed by: Problem 2 | |
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