WAEC Mathematics 2018 Objective — Question 36
Question 36 of 50 from the West African Examinations Council (WAEC) Mathematics 2018 Objective paper, with the correct answer and a full explanation.
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Find the nth term of the sequence 2×3, 4×6, 8×9, 16×12, …
- A. 2ⁿ×3(n+1)
- B. 2ⁿ×3nCorrect
- C. 2ⁿ×3ⁿ
- D. 2ⁿ×3ⁿ⁻¹
Explanation
The first factor doubles each term (2ⁿ) while the second increases by 3 each time (3n), giving 2ⁿ×3n.
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