Advertisements
Advertisements
प्रश्न
In what time will Rs 15625 amount to Rs 17576 at 4% p.a. compound interest?
Advertisements
उत्तर
Here P = Rs.15625, A = 17576, r = 4%
Now, `"P"(1 + "r"/100)^"t"` = A
⇒ `15625(1 + 4/100)^"t"`
= 17576
⇒ `(26/25)^"t"`
= `(17576)/(15625)`
= `(26/25)^3`
By comparing powers, t = 3
Hence time is 3 years.
APPEARS IN
संबंधित प्रश्न
The value of an article decreases for two years at the rate of 10% per year and then in the third year it increases by 10%. Find the original value of the article, if its value at the end of 3 years is Rs. 40,095.
The population of a town decreased by 12% during 1998 and then increased by 8% during 1999. Find the population of the town, at the beginning of 1998, if at the end of 1999 its population was 2,85,120.
A sum of money lent out at C.I. at a certain rate per annum becomes three times of itself in 10 years. Find in how many years will the money become twenty-seven times of itself at the same rate of interest p.a.
The difference between compound interest for a year payable half-yearly and simple interest on a certain sum of money lent out at 10% for a year is Rs. 15. Find the sum of money lent out.
The ages of Pramod and Rohit are 16 years and 18 years respectively. In what ratio must they invest money at 5% p.a. compounded yearly so that both get the same sum on attaining the age of 25 years?
Find the amount and compound interest on Rs.7500 for 1`(1)/(2)` years at 8%, payable semi-annually.
Sunil borrows Rs.50,000 at 10% S.I. for 1`(1)/(2)` years. He immediately invests the entire amount for 1`(1)/(2)` years at 10% compounded annually. What is his gain at the end of the stipulated time, when he repays his loan?
Find the amount and the compound interest on the following :
Rs.12000 for 1`(1)/(2)` years at 5% per annum compounded annually.
Find the amount on Rs 36000 in 2 years 15% p.a. compounded annually.
At what rate percent will Rs.12000 yield Rs.13891.50 as compound interest in 3 years?
