A sum of money trebles itself in 15 years, 6 months. In how many years would it double itself ?

Related Mcqs:

1. A man invests a certain sum of money at 6% per annum simple interest and another sum at 7% per annum simple interest. His income from interest after 2 years was Rs. 354. One-forth of the first sum is equal to one-fifth of the second sum. The total sum invested was :

   A. Rs.3100
   B. Rs.2700
   C. Rs.2200
   D. Rs.1800

2. The sum of money at compound interest amounts to thrice itself in 3 years. In how many years will it be 9 times itself?

   A. 18
   B. 12
   C. 9
   D. 6

3. A sum of money place at compound interest doubles itself in 4 years. In how many years will it amount to eight times itself?

   A. 16
   B. 8
   C. 12
   D. 20

4. A sum of money placed at compound interest doubles itself in 5 years in how many years it would to 8 times of itself at the same rate of interest?

   A. 7 years
   B. 10 years
   C. 15 years
   D. 20 years

5. A sum of money placed at C.I. interest doubles itself in 5 years. It will amount to eight times itself at the same rate of interest in?

   A. 7 years
   B. 10 years
   C. 15 years
   D. 20 years

6. Find the least number of complete years in which a sum of money put out at 25% compound interest will be more than double of itself?

   A. 6 years
   B. 1 year
   C. 2 years
   D. 4 years

7. A, B and C enter into partnership. A invests some money at the beginning, B invests double the amount after 6 months, and C invests thrice the amount after 8 months. If the annual gain be Rs.18000. A’s share is?

   A. Rs.7500
   B. Rs.7200
   C. Rs.6000
   D. Rs.5750

8. Find the sum The difference between the compound and S.I. on a certain sum of money for 2 years at 10% per annum is Rs.15of money?

   A. 1500
   B. 1800
   C. 2100
   D. 1950

9. A sum of money at simple interest amounts to Rs. 815 in 3 years and to Rs. 854 in 4 years. The sum is :________?

   A. Rs. 700
   B. Rs. 690
   C. Rs. 650
   D. Rs. 698

10. 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