Practicing Success
Four number-pairs have been given, out of which three are alike in some manner and one is different. Select the number-pair that is different from the rest. |
17 : 323 23 : 575 19 : 475 11 : 143 |
19 : 475 |
The logic followed here is : Ist number × (ist number + 2) = IInd number 17 : 323 → 17 × (17 + 2) = 323 23 : 575 →23 × (23 + 2) = 575 19 : 475 → 19 × (19 + 2) = 399 ≠ 475 11 : 143 → 11 × (11 + 2) = 143 |