A. Rs.18,828.80

**B. Rs.19,828.80**

C. Rs.18,028.80

D. Rs.17,828.80

E. None of these

Explanation:

Let the sum be Rs.P

P{ [ 1 + 8/100]^{2} – 1 } = 2828.80

P(8/100)(2 + 8/100) = 2828.80 [a^{2} – b^{2} = (a – b) ( a + b)] P = 2828.80 / (0.08)(2.08) = 1360/0.08 = 17000 Principal + Interest = Rs. 19828.80

### Related Mcqs:

- A man gets a simple interest of Rs.500 on a certain principal at the rate of 5% p.a in two years. Find the compound interest the man will get on twice the principal in two years at the same rate.
A. Rs.500

B. Rs.250

C. Rs.5012.50

D. Rs.5062.50

**E. None of these.** - The simple interest on Rs.12000 at a certain rate of interest in five years is Rs.7200. Find the compound interest on the same amount for five years at the same rate of interest.
A. Rs.3502.80

B. Rs.3052.40

C. Rs.3054.8

**D. Rs.3052.80**

E. None of these - Mr. Tassawar Javed invested an amount of Rs. 13,900 divided in two different schemes A and B at the simple interest rate of 14% p.a. and 11% p.a. respectively. If the total amount of simple interest earned in 2 years be Rs. 3508, what was the amount invested in Scheme B?
**A. Rs. 6400**

B. Rs. 6500

C. Rs. 7200

D. Rs. 7500 - What will be the ratio of simple interest earned by certain amount at the same rate of interest for 6 years and that for 9 years ?
A. 1 : 3

B. 1 : 4

**C. 2 : 3**

D. Data inadequate - A sum of Rs. 725 is lent in the beginning of a year at a certain rate of interest. After 8 months, a sum of Rs. 362.50 more is lent but at the rate twice the former. At the end of the year, Rs. 33.50 is earned as interest from both the loans. What was the original rate of interest?
**A. 3.46%**

B. 4.5%

C. 5%

D. 6% - A sum of Rs.4800 is invested at a compound interest for three years, the rate of interest being 10% p.a., 20% p.a. and 25% p.a. for the 1st, 2nd and the 3rd years respectively. Find the interest received at the end of the three years.
A. Rs.2520

**B. Rs.3120**

C. Rs.3320

D. Rs.2760

E. None of these - Simple interest on a certain sum of money for 3 years at 8% per annum is half the compound interest on Rs. 4000 for 2 years at 10% per annum. The sum placed on simple interest is:_______?
A. Rs. 1550

B. Rs. 1650

**C. Rs. 1750**

D. Rs. 2000 - Rajan borrowed Rs.4000 at 5% p.a compound interest. After 2 years, he repaid Rs.2210 and after 2 more year, the balance with interest. What was the total amount that he paid as interest?
**A. Rs.635.50**

B. Rs.613.50

C. Rs.675.50

D. Rs.653.50 - Compound interest earned on a sum for the second and the third years are Rs.1200 and Rs.1440 respectively. Find the rate of interest?
A. 18% p.a.

B. 22% p.a.

**C. 20% p.a.**

D. 24% p.a.

E. None of these. - A sum amount to Rs.1344 in two years at simple interest. What will be the compound interest on the same sum at the same rate of interest for the same period?
A. Rs.150

B. Rs.140

C. Rs.130

**D. Data insufficient for the answer**