Multiple choice

Directions: Find the number which is wrong in given number series. 225, 336, 447, 555, 669

  1. 225

  2. 447

  3. 555

  4. 669
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C Correct answer
Explanation

The pattern is: 225 (+111) = 336 (+111) = 447 (+111) = 558. The number 555 is incorrect; it should be 558.

AI explanation

The pattern adds 111 to each preceding term, so 225 plus 111 equals 336, and 336 plus 111 equals 447. Following this rule, 447 plus 111 gives 558, making the term 555 incorrect.

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