Select the option that is related to the third number in the same way as the second number is related to the first number.

166 : 415 : : 256 : ?

640

166 : 415 : : 256 : ?

The logic followed here is :

As we know

1 + 6 + 6 = 13

and 2 + 5 + 6 = 13

and 4 + 1 + 5 = 10

Now by checking options

640 → 6 + 4 + 0 = 10

549 → 5 + 4+ 9 = 18 ≠ 10

428 → 4 + 2 + 8 = 14 ≠ 10

597 → 5 + 9 + 7 = 18 ≠ 10