Select the option that is related to the fifth number in the same way as the second number is related to the first number and the fourth number is related to the third number. 6 : 209 :: 7 : 336 :: 9 : ? |
728 722 725 648 |
722 |
As we know 63 - 7 = 209 73 - 7 = 336 Similarly 93 - 7 = 722 |