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Multiple choice

Directions: In the following question, a number series is given in which one number is wrong. Find out that wrong number. 4 5 14 51 280 1125 6786

  1. 5

  2. 14

  3. 51

  4. 280

  5. 1125

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

Pattern: 4*1+1=5, 5*2+4=14, 14*3+9=51, 51*4+16=220. The term 280 is incorrect; it should be 220. Then 220*5+25=1125.

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