ACT Math Practice Question #1404 (Medium (31)) | Test Citadel
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ACT Math Difficulty: Medium (31)

Digital ACT Math Practice Question #1404

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In an arithmetic sequence, the 4th term is 19 and the 10th term is 49. What is the 25th term of this sequence?
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Slope d = (49-19)/6 = 5. 25th term = 49 + 15(5) = 124.

Masterclass Solution & Distractor Trap Analysis

6d = 49 - 19 = 30 -> d = 5. a_25 = a_10 + 15d = 49 + 15(5) = 49 + 75 = 124....

Distractor Analysis: Trap choice eliminates careless test-takers who confuse roots with coordinates...

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