Question : A principal of Rs. 10,000, after 2 years compounded annually, the rate of interest is 10% per annum during the first year and 12% per annum during the second year (in rupees) will amount to:
Option 1: Rs. 12,000
Option 2: Rs. 12,320
Option 3: Rs. 12,500
Option 4: Rs. 11,320
Correct Answer: Rs. 12,320
Solution : Principal = Rs. 10,000 Rate at first year = 10% Amount after 2 years= $P(1+\frac{R_1}{100})(1+\frac{R_2}{100})$ to solve this where $P$ is principal, $R_1$ and $R_2$ are the rates of interest per annum for two successive years. $\therefore$ Amount after two years = $10000(1+\frac{10}{100})(1+\frac{12}{100})$ = 12,320 Hence, the correct answer is Rs. 12,320.
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Question : An amount was lent for two years at 20% per annum, compounded annually. Had the compounding been done half-yearly, the interest would have increased by Rs. 241. What was the amount (in Rs.) lent?
Option 1: Rs. 10,000
Option 2: Rs. 12,000
Option 3: Rs. 20,000
Option 4: Rs. 24,000
Question : A sum becomes Rs. 7,436 in two years when interest is compounded annually at the rate of 4% per annum. What was the sum?
Option 1: Rs. 7,075
Option 2: Rs. 6,275
Option 3: Rs. 6,575
Option 4: Rs. 6,875
Question : What is the Compound Interest (in Rs.) on Rs. 12500 at the rate of 12% per annum compounded yearly for 2 years?
Option 1: Rs. 3000
Option 2: Rs. 2980
Option 3: Rs. 3050
Option 4: Rs. 3180
Question : What will be the amount of Rs. 12500 at the rate of 20% per annum compounded yearly for 3 years?
Option 1: Rs. 21080
Option 2: Rs. 21560
Option 3: Rs. 20600
Option 4: Rs. 21600
Question : What will be the amount received on Rs. 25000 at the rate of 20% per annum compounded yearly for 4 years?
Option 1: Rs. 51840
Option 2: Rs. 50350
Option 3: Rs. 53550
Option 4: Rs. 48750
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