Explanation:

Let’s break the series down:

- 762 to 755: Difference is -7

- 755 to 741: Difference is -14

- 741 to 720: Difference is -21

- 720 to 692: Difference is -28

Noticing a pattern:

- The difference increases by -7 each time.

Next difference should be:

- -28 -7 = -35

So,

- 692 - 35 = 657

Checking options:

1. 657 (This fits)

2. 655

3. 664

4. 641

- The series follows a pattern with differences: -7, -14, -21, -28, -35.

- Only Option 1: 657 matches our calculation.