Multiple choice

Directions: Find the wrong number in the following number series: 45, 48, 54, 84, 165, 408, 1137

  1. 48

  2. 54

  3. 84

  4. 165

  5. 408

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The pattern is: 45*1+3=48, 48*1+6=54, 54*1+9=63 (not 84). The sequence should be 45, 48, 54, 63, 75... Alternatively, checking differences: 3, 6, 30, 81... The term 54 is the likely error in the progression.