Select the option that is related to the third number in the same way as the second number is related to the first number.
68 : 321 :: 525 : ?
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e. 778.
68 : 321 → 321 - 68 = 253
525 : ? → 778 - 525 = 253