A person invested some amount at the rate of 12% simple interest and some other amount at the rate

A person invested some amount at the rate of 12% simple interest and some other amount at the rate of 10% simple interest. He received yearly interest of ₹130. But, if he had interchanged the amounts invested, he would have received ₹4 more as interest. The total amount he invested is:
(i) 700 (ii) 12000 (iii) 1200 (iv) none of these