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  • Number Pattern Recognition - Find the Odd Number
  • Directions: In the following numbers, one number is wrong...
Multiple choice

Directions: In the following numbers, one number is wrong. Find out the odd number.

7, 11, 13, 17, 19, 21, 25, 29.

  1. 17

  2. 19

  3. 21

  4. 25

  5. 29

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

The differences between numbers are alternately + 4 and + 2.    

 7 + 4 = 11; 11 + 2 = 13; 13 + 4 = 17; 17 + 2 = 19; 19 + 4 = 23; 23 + 2 = 25; 25 + 4 = 29.  21 is an odd man.

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