Q1. The compound interest on a certain sum for 2 years at 10% per annum is Rs. 1260. The simple interest on the same sum for double the time at half the rate percent per annum is ?
Rs. 1200
Rs. 1160
Rs. 1208
Rs. 1175
Solution:

Q2. Manish borrowed a sum of Rs. 1150 from Anil at the simple rate of 6% per annum for 3 years. He then added some more money to the borrowed sum and lent it to Sunil for the same time at 9% per annum at simple interest. If Manish gains Rs. 274.95 by way of interest on the borrowed sum as well as his own amount from the whole transaction, then what is the sum lent by him to Sunil?
Rs. 1290
Rs. 1785
Rs. 1785
Rs. 1785
Solution:

Q3. The simple interest on a sum of money will be Rs. 300 after 5 years. In the next 5 years principal is tripled, what will be the total interest at the end of the 10th year?
1200
900
600
1500
Solution:

Q4. A person lent a certain sum of money at 4% simple interest; and in 8 years the interest amounted to Rs. 340 less than the sum lent. Find the sum lent?
500
600
1000
1500
Solution:

Q5. A sum was put at simple interest at a certain rate for 2 years. Had it been put at 1% higher rate, it would have fetched Rs. 24 more. The sum is?
1200
1500
1800
2000
Solution:

Q6. A sum of money at compound interest amounts to Rs. 2809 in two years, and to Rs. 2977.54 in the three years. Find the rate of interest and the original sum?
2000
2100
2200
2500
Solution:

Q7. Consider the following statements If a sum of money is lent at simple interest, then the 
I. money gets doubled in 5 years if the rate of interest is  II. money gets doubled in 5 years if the rate of interest is 20%. III. money becomes four times in 10 years if it gets doubled in 5 years. Of these statements,

I and III and correct
II alone is correct
III alone is correct
II and III are correct
Solution:

Q8. Simple interest on a certain amount is 9/16 of the principal. If the numbers representing the rate of interest in percent and time in years be equal, then time, for which the principal is lent out, is?
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Solution:

Q9. If the rate increases by 2%, the simple interest received on a sum of money increases by Rs. 108. If the time period is increased by 2 years, the simple interest on the same sum increases by Rs. 180. The sum is?
Rs. 1800
Rs. 3600
Rs. 5400
Data inadequate
Solution:

Q10. A man lends Rs. 10,000 in four parts. If he gets 8% on Rs. 2000;  on Rs. 4000 and   on Rs. 1400; what percent must he get for the remainder, if his average annual interest is 8.13%?


7%
9%
 
 
Solution:

Q11. A man borrows Rs. 12,500 at 20% compound interest. At the end of every year he pays Rs. 2000 as part repayment. How much does he still owe after three such installments?
Rs. 12,000
Rs. 12,864
Rs. 15,600
None of these
Solution:

Q12. A part of Rs. 38,800 is lent out at 6% per six months. The rest of the amount is lent out at 5% per annum after one year. The ratio of interest after 3 years from the time when first amount was lent out is 5 : 4. Find the second part that was lent out at 5%?
Rs. 26,600
Rs. 28,800
Rs. 27,500
Rs. 28,000
Solution:

Q13. The difference between C.I. and S.I. on a certain sum of money at 10% per annum for 3 years is Rs. 620. Find the principal if it is known that the interest is compounded annually?
Rs. 200,000
Rs. 20,000
Rs. 10,000
Rs. 100,000
Solution:

Q14. We had 1000 goats at the beginning of year 2001 and the no. of goats each year increases by 10% by giving birth (compounded annually). At the end of each year, we double the no. of goats by purchasing the same no. of goats as there is the no. of goats with us at the starting of time. What is the no. of goats at the beginning of 2004?
10600
10648
8848
8226
Solution:

Q15. The population of towns A and B is in the ratio of 1 : 4. For the next 2 years, the population of A would increase and that of B would decrease by the same percentage every year. After 2 years, their population became equal. What is the percentage change in the population?
33.33%
66.66%
25%
Not possible
Solution:

               

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