Problem Solving

1. If I x + 2I =4 , what is the value for x?
a. X^2 is not equal to 4
b. X^2 = 36

2. At a certain bakery, each roll cost r cents and each doughnut cost d cents. If John bought rolld and doughnut, how many cents did he pay for each roll?
a. John paid $5.00 for 8 rolls and 6 dougnuts
b. John would have paid $10.00 if he had bought 16 rolls and 12 doughnuts

3. if c and d are integers, is c even?
a. C(d+1) is even
b. (c+2)(d+4) is even

4. Are positive integers p and q both greater than n?
a. P - q is greater than n
b. Q > p

5. John bought several chairs. If each chair was either a 23 cents chair or a 21 cent chair, how many 23 cents chair did John buy?
a. John bought a total of 6 chairs
b. The total value of chairs bought was 130 cents

6. If q is a positive integer less than 17 and r is the remainder when 17 is divided by q, what is the value of r?
a. Q > 10
b. Q = 2^k , where k is a positive integer

7. In a certain senior class, 72 percent of the male students and 80 percent of the female students have applied to college. What fraction of students in the senior class are male?
a. There are 840 students in the senior class
b. 75 percent of students in the senior class have applied to college