Question : A sum of Rs. 3,500 is lent out at simple interest in two parts. One part at the annual rate of 7% and another part at the annual rate of 5%. If the total annual interest is Rs. 210, then what is the sum lent out at the rate of 7%?
Option 1: Rs. 1,750
Option 2: Rs. 2,000
Option 3: Rs. 1,500
Option 4: Rs. 2,250
Correct Answer: Rs. 1,750
Solution :
Given: A sum of Rs. 3,500 is lent out at simple interest in two parts.
Use the formula,
According to the question,
⇒
⇒
⇒
⇒
⇒
Hence, the correct answer is Rs. 1,750.