Multiple choice

In each of the following questions a number series is given. In each series only one number is wrong. Find out the wrong number. 82 93 125 148 192 247

  1. 93

  2. 125

  3. 148

  4. 192

  5. 247

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

The pattern in the series 82, 93, 125, 148, 192, 247 is: add 11, add 32, add 23, add 44, add 55. The pattern of additions follows a sequence: 11, 32, 23, 44, 55. If we replace 125 with 143, the pattern becomes: 82+11=93, 93+50=143, 143+105=248, which doesn't help. Looking at alternate pattern: 82+11=93, 93+32=125, 125+23=148, 148+44=192, 192+55=247. The additions 11, 32, 23, 44, 55 don't follow a clear pattern. However, 125 breaks what should be 93+50=143 following 82+11=93. Therefore 125 is the wrong number.