Practicing Success
Three of the following number-pairs are alike in a certain way and one is different. Select the odd one. |
271 : 15 398 : 18 181 : 12 305 : 16 |
398 : 18 |
The logic followed here is : (Second number + 1) + Second number = ist number 271 : 15 ⇒ 15 + 1 ⇒ 162 + 15 = 271 398 : 18 ⇒ 18 + 1 ⇒ 192 + 18 = 379 ≠ 398 (odd) 181 : 12 ⇒ 12 + 1 ⇒ 132 + 12 = 181 305 : 16 ⇒ 16 + 1 ⇒ 172 + 16 = 305 |