Multiple choice

In each of the following number series , a wrong word is given. Find out the wrong number. 2 6 16 38 84 176 368

  1. 6

  2. 16

  3. 38

  4. 84

  5. 176
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E Correct answer
Explanation

Pattern: differences are 4, 10, 22, 46, 92, 192. Each difference roughly doubles and adds 2. But 176 is wrong: it should be 178 (84 + 94, where 92+2=94). Let me verify: 2, 6(×2+2), 16(×2+4), 38(×2+6), 84(×2+8), 176(×2+10, should be 178), 368. The pattern is ×2+(2,4,6,8,10,12). 176 should be 178.

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