Find the next number in the series: 7, 21, 63, 189, ?
- A. 567 ✓
- B. 560
- C. 550
- D. 540
Correct answer
A. 567
Explanation
Each number is multiplied by 3, so the next number is 189 x 3 = 567.
A. 567
Each number is multiplied by 3, so the next number is 189 x 3 = 567.