Question

A sum becomes Rs. 10650 in 5 years. and Rs. 11076 in 6 years at simple interest. What is the sum?

• A. Rs. 8946
• B. Rs. 8740
• C. Rs. 8520
• D. Rs. 8800

Answer 1

Answer:

C. Rs. 8520

Solution: Concept Used: In this type of question, number can be calculated by using the below formulae Formula Used: If a sum with simple interest rate, amounts to Rs. ‘A’ in y years. and Rs. ‘B’ in z years. then, P = (A × z – B × y)/(z – y) Calculation: Using the above formulae, we have ⇒ P = (10650 × 6 – 11076 × 5) ⇒ P = Rs. 8520 ∴ Required principal is Rs. 8520