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.
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.
APPEARS IN
संबंधित प्रश्न
Find the difference between the compound interest and the simple interest in 3 years on Rs 15,000 at 8% p.a. compounded yearly.
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 between the compound interest compounded yearly and half-yearly for the following:
Rs 20,000 for `1 1/2` years at 16 % p.a.
On what sum will the difference between compound interest and the simple interest for 3 years at 12% be Rs 1,123.20?
The population of a village increases at the rate of 50 per thousand. Its population after 2 years will be 22,050. Find the present population.
Under the electrification programme of villages, the number of villages with electricity rose to 27,040 from 25,000 in 2 years. Find the rate of growth in the number of villages with electricity.
A new car is purchased for Rs 4, 00,000 .Its value depreciates at the rate of 10% per annum. What will be its value after 4 years?
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.?
The cost of a T.V. was quoted Rs 17,000 at the beginning of the year 1999. In the beginning of 2000 the price was hiked by 5%. Because of decrease in demand the cost was reduced by 4% in the beginning of 2001. What is the cost of the T.V. in 2001?
