A: 21 % 7 = 6 For all integers j, the remainder is 6. For j = 1 to 9 the remainder is 6. The answer is (A).
Answer the following multiple choice question with options (a), (b), (c), (d), (e) by reasoning step-by-step.
Q:When 21 is divided by positive integer j, the remainder is 6. For how many values of j is this true? Answer Choices: A)1 B)3 C)5 D)7 E)9