Select the option that is related to the fourth number in the same way as the first number is related to the second number and the fifth number is related to the sixth number.

68 : 4 : : ? : 7 : : 220 : 6

347

THE LOGIC FOLLOWED HERE IS :

IIND NUMBER³ + 4 = IST NUMBER

AS

4³ + 4

= 64 + 4  = 68

AND

6³ + 4

= 216  + 4  = 220

SIMILARLY

7³ + 4

= 343  + 4  = 347