Multiple choice

Find the wrong number in the following number series. 160, 310, 600, 1170, 2340, 4550, 9040

  1. 2340

  2. 600

  3. 160

  4. 4550

  5. None of these
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Pattern: ×2-10, ×2-20, ×2-40, ×2-80 (doubling subtraction). 160×2-10=310, 310×2-20=600, 600×2-40=1160 (but series has 1170). The number 1170 breaks the pattern; next should be 1160×2-80=2240, not 2340. Option A correctly identifies 2340 as wrong.

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