71). If Rs.84 invested at a certain rate of simple interest amounts to Rs.96 at the end of 3 years, how much will Rs.105 amount to at the same rate of interest in 5 years?
| A). Rs.1200 |
| B). Rs.1300 |
| C). Rs.1400 |
| D). Rs.1310 |
|
72). A merchant borrowed a total of Rs.4000 from two lenders. He paid simple interest at the rate of 5% p.a. to one of them and 7% p.a. to the other. If the total interest paid for three years was Rs.696. how much did he borrow at each rate?
| A). Rs.2400 and Rs.1600 |
| B). Rs.3600 and Rs.2800 |
| C). Rs.4800 and Rs.3000 |
| D). Rs.5400 and Rs.4000 |
|
73). How long will a sum of money take to double if it is invested at 12.5% p.a. SI?
| A). 8 Years |
| B). 10 Years |
| C). 12 Years |
| D). 13 Years |
|
74). How long will a sum of money take to trIple If It Is Invested at 20% p.a., SI
| A). 9 Years |
| B). 10 Years |
| C). 12 Years |
| D). 16 Years |
|
75). A sum of money becomes four times its principal In 18 years after earning simple interest for this duration. At what rate of interest was it invested?
| A). 0.3333 |
| B). 0.48 |
| C). 0.1667 |
| D). 0.24 |
|
76). Find the amount and compound interest on Rs.20,000 for 2 years at 20% p. a., interest being compounded annually.
| A). Rs.3300 |
| B). Rs.4400 |
| C). Rs.6600 |
| D). Rs.8800 |
|
77). What is the amount and interest earned on Rs.50,000 for 18 months at the rate of 20% p.a., if interest is compounded half yearly?
| A). Rs.16550 |
| B). Rs.24250 |
| C). Rs.30450 |
| D). Rs.18750 |
|
78). What principal will amount to Rs.19,965 in 3 years at 10% p.a. compound interest?
| A). Rs.12000 |
| B). Rs.15000 |
| C). Rs.18000 |
| D). Rs.24000 |
|
79). What will Rs.20,000 amount to in 2 years, at compound interest, if the rates for successive years are 8% and 10%? What will be the difference in the amount if the rates for successive years are 10% and 8% respectively?
| A). Rs.1600 |
| B). No difference |
| C). Rs.2000 |
| D). Rs.2400 |
|
80). On what sum will the compound interest for 2 years at 10% p.a. be Rs.5250?
| A). Rs.15000 |
| B). Rs.20000 |
| C). Rs.25000 |
| D). Rs.30000 |
|
