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The product of 2 distinct positive prime numbers is an even number, and one less than the product is a prime number. All of the following prime numbers could be one of the original prime numbers EXCEPT:

(A) 2

(B) 3

(C) 5

(D) 7

(E) 19

The Correct Answer
Explanation

If x ≠ -2 or 3, what is image equivalent to?

(A)-2 (B) 2 (C) image (D) image (E) 0

Correct Answer: D

The Korean BBQ taco truck sells short rib tacos for 99?. Christine has only pennies, nickels, dimes, and quarters in her purse. If she wants to pay with exact change, then what is the least number of coins Christine can use to buy a 99? taco? (Note: Assume any sales tax is included in the price.)

(A)6 (B) 7 (C) 8 (D) 9 (E) 10

Correct Answer: D

If xy = 144, x + y = 30, and x > y, what is the value of x – y ?

(A)4 (B)6 (C)18 (D)22 (E)24

Correct Answer: C

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