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Multiple choice

Directions: Find the wrong number in the following number series. 3, 7, 16, 35, 74, 152, 312

  1. 312

  2. 152

  3. 74

  4. 35

  5. 16

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

Pattern: x*2 + 1, x*2 + 2, x*2 + 3, x*2 + 4... 3*2+1=7, 7*2+2=16, 16*2+3=35, 35*2+4=74, 74*2+5=153. The term 152 is incorrect; it should be 153.

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