Multiple choice Find the missing number in the following number series $8, 10, 40, ?, 168, 170$ 42 45 48 49 None of these Reveal answer Fill a bubble to check yourself A Correct answer Explanation The pattern alternates between adding 2 and multiplying by 4: 8 + 2 = 10, 10 × 4 = 40, 40 + 2 = 42, 42 × 4 = 168, 168 + 2 = 170. The missing number is 42.