Multiple choice

Find the missing number in the following number series $8, 10, 40, ?, 168, 170$

  1. 42

  2. 45

  3. 48

  4. 49

  5. 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.