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Multiple choice

Find the wrong term in the following number series- 20 35 63 117 210 350

  1. 63

  2. 20

  3. 35

  4. 350

  5. 210

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

The series follows: ×2 - 5, ×2 - 7, ×2 - 9, ×2 - 11, ×2 - 13. 20×2-5=35, 35×2-7=63, 63×2-9=117, 117×2-11=223 (not 210), 223×2-13=433 (not 350). The last term 350 is incorrect.

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