Advertisements
Advertisements
प्रश्न
The simple interest and the compound interest on a certain sum of money for 2 years at the same rate of interest are Rs 8,000 and Rs 8,640 respectively. Calculate the rate of interest and the sum.
Advertisements
उत्तर
The extra interest earned= C.I. - S.I. =Rs (8,640 - 8,000) =Rs 640.
The interest for the first year = S. I. for 2 years / 2 = Rs `8000/2` = Rs 4000
Therefore, the rate of interest = `640/4000 xx 100 = 16 %`
Now ,
S.I. = `("P" xx "r" xx "t")/100`
`=> "Rs" 8000 = ("P" xx 16 xx 2)/100`
`=> P = Rs (8000 xx 100)/32`
`=> P = "Rs" 25000`
The rate of interest was 16°/o and the original sum was Rs 25,000.
संबंधित प्रश्न
Meera borrowed Rs 35,000 at 12.5% p.a. simple interest for 3 years. She immediately gave it to Archana at 12 % p.a. compound interest compounded annually. Find Meera's loss or gain at the end of 3 years.
Calculate the Amount and Cornpound Interest for the Following, when Cornpounded Annually:
Rs 12,000 for 3 years at 15 % p.a.
Calculate the amount and the compound interest for the following, when cornpounded half-yearly:
Rs 6,000 for `1 1/2` years at 10 % p.a.
Find the difference betlween the compound interest compounded yearly and half-yearly for the following:
Rs 15,000 for `1 1/2` years at 12 % p.a.
Find the difference between the compound interest compounded yearly and half-yearly for the following:
Rs 20,000 for `1 1/2` years at 16 % p.a.
The present population of a town is 1,
0/o per annum 1, 15,200. If it increases at the rate of `6 2/3` % per annum find
Its population 2 years ago.
A machine was purchased 2 years ago. Its value decreases by 10% every year. Its present value is Rs 19,083.60. For how much money was the machine purchased?
The population of a city is 24,000. In the next 3 years it will be 27,783. Find the rate of growth of the population.
A building worth Rs 1, 33,100 is constructed on a plot of land worth Rs 72,900. After how many years will the values of both be same, if the land appreciates at 10% p.a. and the building depreciates at 10% p.a.?
Find the Compound Interest on Rs. 2,000 for 3 years at 15% per annum Compounded annually.
