1.

A person invested some account at the rate of 12%simple interest and a certain amount at rate of 10%simple interest. He received yearly interest of Rs. 130. But if he had interchanged the amounts invested,he would have received Rs. 4 more as interest. How much did he invest at 12%simple interest ?

A. s. 400
B. s. 500
C. s. 700
D. s. 800
Answer» C. s. 700


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