Practicing Success
Select the option that is related to the third number on the same basis as the second number is related to the first number. 7 : 42 :: 9 : ? |
49 72 90 81 |
72 |
7 : 42 :: 9 : ? The logic followed here is : 7 : 42 7 : 7 ( 7 - 1 ) 7 : 7 (6) 7 : 42 Similarly 9 : ? 9 : 9 (9 - 1 ) 9 : 9 (8) 9 : 72 |