Multiple choice

A series is given with one term missing choose the correct alternative from the given ones that will complete the series 840, 168, 42, 14, 7, ?

  1. 1

  2. 7

  3. 9

  4. 12
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

840÷5=168, 168÷4=42, 42÷3=14, 14÷2=7. The divisor decreases by 1 each time (5, 4, 3, 2). Following this pattern, the next divisor should be 1, so 7÷1=7. Each division uses the next smaller integer.

Keep practicing — related questions