A person got Rs.48 more when he invested a certain sum at compound interest inst

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Question
A person got Rs.48 more when he invested a certain sum at compound interest instead of simple interest for two years at 8% p.a. Find the sum ?
Options
A. Rs.8000
B. Rs.6500
C. Rs.7500
D. Rs.5000

Correct Answer

Rs.7500

Explanation

$p = \frac{(d � 100^{2})}{R^{2}}$

Where d is difference, r is rate of interest.

=> (48 x 100 x 100) / 8 x 8 = Rs.7500

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Simple Interest problems

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1. Lasya invested certain amount for two rates of simple interests at 5% p.a. and 4% p.a. What is the ratio of Lasya's investments if the interests from those investments are equal ?
Options
A. 4 : 5
B. 5 : 4
C. 7 : 6
D. 6 : 7

2. Praveena took a loan of Rs. 1200 with simple interest for as many years as the rate of interest. If she paid Rs. 432 as interest at the end of the loan period, what was the rate of interest ?
Options
A. 6
B. 7
C. 9
D. 11

3. On retirement, a woman gets Rs. 1,45,440 of her provident fund which she invests in a scheme at 20% per annum. Her monthly income from this scheme will be
Options
A. Rs. 2550
B. Rs. 2424
C. Rs. 2224
D. Rs. 2380

4. You put $750 into a certificate of deposit. Your simple annual interest rate is 4%. You receive a check for the interest at the end of each year. How long will it take to earn $150 in interest?
Options
A. 5years
B. 6years
C. 7years
D. 8years

5. Find the simple interest charged on borrowing $325 for 5 years at 3% p.a. (per annum or per year) interest.
Options
A. 59
B. 46
C. 48.75
D. 34.75

6. A lady took loan from a bank at the rate of 12% p.a. simple interest. After 3 years she had to pay Rs. 5400 interest only for the period. The principal amount borrowed by her was :
Options
A. Rs. 15,000
B. Rs. 1,50,000
C. Rs. 1500
D. Rs. 1,62,000

7. At what rate percent on simple interest will Rs.415 amount to Rs.514 in 4 years ?
Options
A. 4.58 %
B. 5.96 %
C. 6.52 %
D. 4.98 %

8. A sum of money was invested at the rate of 7.5% S.I. per annum for 4 years. If the investment was for 5 years, the interest earned would have been Rs. 375 more. What was the initial sum invested?
Options
A. Rs. 4750
B. Rs. 5000
C. Rs. 4500
D. Rs. 3750

10. The amount of simple interest accrued on an amount of Rs 28,500 in seven years is Rs 23,940 What is the rate of interest p.c.p.a ?
Options
A. 10.5
B. 12.5
C. 11
D. 12

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