Multiple choice

A number series is given below, in which only one number is wrong. Find out the wrong number. 2, 7, 22, 67, 203, 607, 1822

  1. 203

  2. 67

  3. 22

  4. 7

  5. 2
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A Correct answer
Explanation

The pattern is (previous number * 3) + 1. Following this, 2*3+1=7, 7*3+1=22, 22*3+1=67, 67*3+1=202, 202*3+1=607, 607*3+1=1822. The number 203 is incorrect as it should be 202.

AI explanation

The pattern multiplies each number by 3 and then subtracts 1 to get the next number. For example, 2 times 3 minus 1 is 5, and 7 times 3 minus 1 is 20. Continuing this correctly, 607 times 3 minus 1 equals 1820, which means 203 is the wrong term. The result is 203.

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