Multiple choice

Directions: In the following question, four numbers are given. Out of these, three are alike in a certain way but one is different. Choose the one which is different from the rest three.

  1. 120

  2. 168

  3. 290

  4. 380

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

Each of the numbers except 380, is either one less or one more than the square of a certain number.