AMC 8 Daily Practice - The Rule of Arithmetic Sequences

Complete problem set with solutions and individual problem pages

Problem 3 Easy

Table 2 and Table 3 are part of Table 1. What is the value of a+b?

  • A.

    37

  • B.

    40

  • C.

    49

  • D.

    59

  • E.

    79

Answer:E

From Table 1's column pattern: a - 39 = 39 - 19 \implies a = 59.

From Table 1's row pattern: b - 13 = 17 - 11 + 1 \implies b = 20.

Thus: a + b = 59 + 20 = 79.

Final result: \boxed{79}