Answer: 3.
- A 2
- B 3
- C 4
- D 5
Correct answer: B. 3
Explanation: an = a × r<sup>n-1</sup>. a × 2<sup>6</sup> = 192. a × 64 = 192. a = 3.
Bar heights for AP 2, 5, 8, 11 with the common difference d=3 marked between consecutive terms.
Concept context
Arithmetic progressions, geometric progressions, and sums