Explanation:

- First, analyze the pair 10 : 24.

- 24 is 14 more than 10 (10 + 14 = 24).

- Option 1: 140 : 165.

- 165 is 25 more than 140 (140 + 25 = 165).

- Option 2: 48 : 99.

- 99 is 51 more than 48 (48 + 51 = 99).

- Option 3: 50 : 80.

- 80 is 30 more than 50 (50 + 30 = 80).

- Option 4: 70 : 120.

- 120 is 50 more than 70 (70 + 50 = 120).

The relationship is adding a specific number to the first to get the second. The closest relationship according to the rule of 10 : 24 (+14) does not actually apply exactly to any given option.

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