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The simple interest accrued on a sum of certain principal is Rs. 6500/ in eight years at the rate of 13 p.c.p.a. What would be the compound interest accrued on that principal at the rate of 8 p.c.p.a. in 2 years?
The corect option is A by using compound formulae the amount comes to be 1040.
The compound interest accrued on an amount of the end of two years @ 12 p.c.p.a. is Rs. 2862/ What is the amount?
The correct answer is A as
CI = P((1+R/100)^n  1)
2862 = P(( 1+12/100)^21)
2862 = P((1+144/10000 + 24/100) 1)
2862 = P (144/10000+24/100)
2862 = P (2544/10000)
P = 11,250
The simple interest accrued on a sum of certain principal is Rs. 7,200/ in six years at the rate of 12 p.c.p.awhat would be the compound interest accrued on that principal at the rate of 5 p.c.p.a. in 2 years.
The simple interest accrued on a sum of certain capital principal is Rs. 6400/ in four years at the rate of 8 p.c.p.a. what would be the compound interest accrued on that principal at the rate of 2 p.c.p.a. in 2 years?
The simple interest accrued on an amount of Rs. 22,500/ at the end of four years is Rs. 10,800/. What would be the compound interest accrued on the same amount at the same rate at the end of two years?
The simple interest accrued on an amount of Rs. 45000/ after 2 years at a certain rate of interest is 13500/. What will be the compound interest accrued on the same amount in the same number years at the same rate of interest?
The simple interest accrued on a sum of certain principal is Rs. 2000/ in five years at the rate of 4 p.c.p.a. what would be the compound interest accrued on same principal at same rate in two years?
Ravi borrowed some money at the rate of 4 pcpa for the first three years, at the rate of 8 pcpa for the next two years and at the rate of 9 pcpa for the period beyond 5 years. If he pays a total simple interest of Rs. 19550 at the end of 7 years, how much money did he borrow?
The correct answer is B .as f the amount borrowed be Rs.x, then
x×4×6
100
+
x×8×2
100
+
x×9×2
100
x×4×6100+x×8×2100+x×9×2100 = Rs.19550Th
=>
12x100+16x100+18x10012x100+16x100+18x100 = 19550
=> 12x+16x+18x
= 1955000
=> 46x = 1955000
=> x = 19550000
46
1955000046
= Rs.42500
A sum was put at simple interest at a certain rate for 5 years. had it been put at 5% higher rate, it would have fetched Rs. 500 more. What is the sum?
The correct answer is A
let principle be p , rate be r , si be x . Also t = 5 yrs.
so , x = (p*r*5)/100
x = 5pr/100 _____(1)
If rate = r+5 , si = x+500 then
x+500 = (p*(r+5)*5)/100
x+500 = 5p(r+5)/100
5pr/100+500 = (5pr+25p)/100 (using eq(1))
(5pr+50000)/100 = (5pr+25p)/100
5pr+50000 = 5pr+25p
50000 = 25p
p = 2000
What is the difference between the compound interest and the simple interest for the sum Rs. 16000 at 5% p.a. for 2 years?
Option ( A) 40 is the correct answer.
Explanation: Given, P = 16000₹
R = 5% , T = 2 years
A = P (1 + R /100) ^n
= 16000 * ( 1+5/100) ^2
= 16000 * ( 105 / 100) ^2
A = 17,640₹
C. I = A P
= 17,640  16,000
= 1,640
S. I = PTR / 100
= 16000 * 2 * 5/ 100
= 1,600
Difference CI  SI ;
= 1640  1600
= 40 ₹
A sum of money triples itself in 3 years at a simple interest. In how many years will it multiply five times?
For 3 yrs
SI = P*R*T/100
3PP = P*R*3/100
2P = 3P*R/100
R = 200/3
Money will become 5 times
5P  P = (P*200/3*T)/100
4P = (2/3P)T
T = 6
Money will become five times in 6 years.
A sum of money triples itself in 3 years at a simple interest. In how many years will it multiply five times?
The correct option is Option B.
For 3 yrs
SI = P*R*T/100
3PP = P*R*3/100
2P = 3P*R/100
R = 200/3
Money will become 5 times
5P  P = (P*200/3*T)/100
4P = (2/3P)T
T = 6
Money will become five times in 6 years
An amount of money grows upto Rs. 4000 in 2 years and up to Rs. 8000 in 3 years on compound interest. What is the sum?
A man borrows Rs. 4000 and pays back after 5 years at 15% simple interest. The amount paid by the man is:
What is the time period for which Rs. 8000 amounts to Rs. 12000 at 20% p.a. of simple interest?
What is the rate of simple interest at which Rs. 14,000 gives interest of Rs. 1960 in two years?
What is the sum of amount which gives Rs. 6300 as interest @ 7% per annum of simple interest in 7*1/2years?
If the rate of simple interest is 12% per annum, the amount that would fetch interest of Rs. 6000 per annum is:
A sum was put at simple interest at a certain rate for 2 years. Had it been put at 4% higher rate, it would have fetched Rs. 112 more. The sum is:
The correct answer is C as let principle be p , rate be r , si be x . Also t = 2yrs.
so , x = (p*r*2)/100
x = 2pr/100 _____(1)
If rate = r+4 , si = x+112 then
x+112 = (p*(r+4)*2)/100
x+112 = 2p(r+4)/100
2pr/100+112 = (2pr+8p)/100 (using eq(1))
(2pr+11200)/100 = (2pr+8p)/100
2pr+11200 = 2pr+8p
11200 = 8p
p = 1400
Correct ans is b) 1400
In what time will a sum of money double itself @ 20% per annum (p.a.) simple interest?
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