Choose the missing terms out of given alternatives: A3, E4, I10, O33, U136, ? |
A680 E681 I684 A685 |
A685 |
The alphabets are repeating vowels only, thus next vowel in the series is A. For the number: 3 3×1 + 1 = 4 4×2 + 2 = 10 10×3 + 3 = 33 33×4 + 4 = 136 136×5 + 5 = 685 The correct answer is Option (4) → A685 |