Explanation:

- Let's break down the problem: S divides Rs.50,000 into two parts for two accounts.

- Account 1 earns 8% interest, Account 2 earns 12% interest.

- After one year, the total interest earned is Rs.5,200.

- Set the money deposited in the 12% account as Rs.x.

- Therefore, money deposited in the 8% account is Rs.(50,000 - x).

- The equation for total interest is:

- 0.08(50,000 - x) + 0.12x = 5,200

- Simplifying the equation:

- 4,000 - 0.08x + 0.12x = 5,200

- 0.04x = 1,200

- x = 30,000

- Therefore, Rs.30,000 is deposited in the account with a 12% interest rate.

- Correct Answer: Option 1, Rs.30,000