A sequence has the nth term 5n - 3. Which term of the sequence is equal to 112?
Answer and explanation
Correct answer: D. 23rd
- Step 1: Set 5n - 3 = 112. Step 2. 5n = 115, so n = 23. Answer: 23rd. Why not the others: 22nd: This finds that 5 × 22 - 3 = 107, which is too small. 24th: This finds that 5 × 24 - 3 = 117, which is too large. 21st: This finds that 5 × 21 - 3 = 102, which is too small.
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