# Compound Interest - Aptitude Questions and Answers Part 3

**11. Ramesh invests Rs 10,200/- separately in two new schemes. Scheme-1 gives him a compound interest at the rate of 10% for two years. Scheme-2 provides him a simple interest at the rate of 5% for 6 years. The interest he earns from both the schemes is equal. Find the amount he invests at simple interest.**
a. Rs. 4200

b. Rs. 4800

c. Rs. 5800

d. Rs. 6000

**12. A person has a debt of Rs 1025/- which he want to pay off completely in 2 years. The compound interest is charged at 5%. What annual payment should he make?**
a. Rs. 550

b. Rs. 551.25

c. Rs. 560

d. Rs. 560.75

**13. A student saves Rs 200/- by the December of each year and lends it at 5% compound interest to hostel mates. How much money will he have at the end of three years?**
a. Rs. 565.25

b. Rs. 635

c. Rs. 662.02

d. Rs. 666.50

**14. Find the Principal that would work out to Rs 4913/- if compounded annually at the rate of 25/4 %.**
a. Rs. 3096

b. Rs. 4076

c. Rs. 4085

d. Rs. 4096

**15. Given: **

Simple interest rate: 10% per annum

Compound interest rate: X% compounded half yearly.

If the difference between the simple interest and compound interest on a sum for 2 years is Rs 124.05/-. Find the principal sum.
a. Rs. 6000

b. Rs. 8000

c. Rs. 10,000

d. Rs. 12,000

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