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III.SUMMATIVETEST.Direction: Read the following questions and write the letter that best represents
your answer in your activity notebook.
1. The first term of an arithmetic sequence is equal to 6 and the common difference is equal 3. What is
the formula for the nth term and the value of the 50th term.
A. An = 3n +5; A50 = 155
C. An = 3n + 5; A5o = - 155
B. An = 3n - 5; A50 = 155
D. An = 3n-5; A50 = -155
2.In an arithmetic sequence, the two arithmetic means between a number and 52 are 40 and 46. What is
n equal to?
A 33
B. 34
C. 35
D. 36​