Correct Answer - Option 4 : 141516

The logic followed here is,

In 395 and 727

3 + 7 = 10

9 + 2 = 11

5 + 7 = 12

So, 395 and 727 is represented as 101112.

And,

In 276 and 957

2 + 9 = 11

7 + 5 = 12

6 + 7 = 13

So, 276 and 957 is represented as 111213.

Similarly,

**In 689 and 877**

**6 + 8 = 14**

**8 + 7 = 15**

**9 + 7 = 16**

Hence, 689 and 877 is represented as **‘141516’.**