1963 TMTA High School Algebra I Contest Problem 32

Problem

A mathematical set is a collection of elements which satisfy a specified condition or conditions and braces {} are used to indicate a set. Which of the following is the set of all positive prime numbers between one and ten?

$\text{(A)} \quad \{2, 3, 4, 5, 7, 9\}$

$\text{(B)} \quad \{2, 3, 6, 9\}$

$\text{(C)} \quad \{2, 4, 6, 8\}$

$\text{(D)} \quad \{2, 3, 5, 7\}$

$\text{(E)} \quad \{3, 5, 7, 9\}$

Solution

The primes between $1$ and $10$ are $2, 3, 5,$ and $7,$ so the answer is $\boxed{\text{(D)}}$

1963 TMTA High School Mathematics Contests (Problems)
Preceded by Problem 31	TMTA High School Mathematics Contest Past Problems/Solutions	Followed by Problem 33

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1963 TMTA High School Algebra I Contest Problem 32

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