Mr. McCall selects a number that is two-digit and positive. If the number is prime, he assigns that many problems for

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Mr. McCall selects a number that is two-digit and positive. If the number is prime, he assigns that many problems for homework. If the number is not prime, he assigns 8 more problems than the number for homework. If he assigns 97 problems for homework, which of the following could be the number he selected?

I. 89
II. 97
III. 105

A. I only
B. I and II only
C. II only
D. II and III only
E. I and III only

Answer: C

Source: Veritas Prep
Source: — Problem Solving |