Compound Interest is an important chapter for banking exams. In every exams, you will find at least 1 question in every exam. From last 4 years I am analyzing the papers of various exams. I noticed that few questions are repeating in all the exams.
(a) Rs. 482
(b) Rs. 424
(c) Rs. 842
(d) Rs. 512
(a) 4%
(b) 5%
(c) 3%
(d) 8%
Ans 2.
Now dividing the second equation by the first equation , we get :
Substituting this value of (1+ R/100 )3 in the first equation we get : 3p/2 = 6,690
∴ Required sum = Rs. 4,460.
Ans 3.
Ans 4.
Ans 5.
Hence , the sum will be 8 times itself in 12 years .
[ Note : The sum is 2 times in 4 years ; it will be 8 ( i.e. 23 ) times in 4 x 3 years i.e. 12 years ]
Ans 6.
=> the least possible value of n is 4.
Hence, the least number of years required is 4.
Ans 7.
Ans 8.
Ans 9. 5%
Ques 1.
What is the time in which Rs 2000 will amount to Rs. 2420 at 10% per annum compound interest?Ques 2.
What sum will become Rs. 6,690 after three years and Rs. 10,035 after six years on compound interest ?Ques 3.
The difference between the compound interest and the simple interest on a certain sum at 5% per annum for 2 years is Rs. 1.50. Find the sum.Ques 4.
Compound interest on a certain sum for 2 years at 10% p.a . is Rs 420. What would be the simple interest at the same rate and for the same time.Ques 5.
A sum of money placed at compound interest doubles itself in 4 years . In how many years will it amount to eight times itself ?Ques 6.
Find the least number of complete years in which a sum of money put at 25% p.a. compound interest will be more than double itself .Ques 7.
Divide Rs. 3903 between A and B , so That when compound annually A's share at the end of 7 years may be equal to B's share at the end of 9 years . The rate of interest is given to be 4% per annum.Ques 8.
How much more would Rs. 20,000 fetch , after two years , if it is put at 20 % p.a. . Compound interest payable half yearly than if it is put at 20% p.a. compound interest payable yearly ?(a) Rs. 482
(b) Rs. 424
(c) Rs. 842
(d) Rs. 512
Ques 9.
A sum in invested at compound interest payable annually . The interest in two successive years is Rs. 225 and Rs. 236.25. Th rate of interest is(a) 4%
(b) 5%
(c) 3%
(d) 8%
solutions :
Ans 1.Ans 2.
Now dividing the second equation by the first equation , we get :
Substituting this value of (1+ R/100 )3 in the first equation we get : 3p/2 = 6,690
∴ Required sum = Rs. 4,460.
Ans 3.
Ans 4.
Ans 5.
Hence , the sum will be 8 times itself in 12 years .
[ Note : The sum is 2 times in 4 years ; it will be 8 ( i.e. 23 ) times in 4 x 3 years i.e. 12 years ]
Ans 6.
=> the least possible value of n is 4.
Hence, the least number of years required is 4.
Ans 7.
Ans 8.
Ans 9. 5%
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