1. If x + y − z = 5 and x − y + z = 10, which of the following statements MUST be true? I. y > z II. x > 5 III. y > 5   I only   II only   III only   I and II only   II and III only   Hint Hint       2. What is 2% of 7%?   0.014%   0.09%   0.14%   1.4%   14%   Hint       3. Tom has 7 times as many crayons as Dick and 3 times as many as Harry. If Dick has less than 21 crayons, what is the maximum number of crayons that Tom can have?   63   105   120   140   147   Hint       4. What is the smallest prime factor of 1001?   3   5   7   11   13   Hint       5. What is the smallest of four consecutive odd integers whose sum is 968?   235   239   243   245   249   Hint       6. The arithmetic mean (average) of 3, 5, 7 and y is 100. What is the value of y?   85   95   105   115   385   Hint       7. A quiz consists of true and false questions. The ratio of the number of true questions to the number of false questions is 4:3. About what percent of the questions are false?   43%   57%   67%   83%   86%   Hint