English

Compute the Amount and the Compound Interest in the Following by Using the Formulae When: Principal = Rs 12800, Rate = 7 1 2 , Time = 3 Years

Advertisements
Advertisements

Question

Compute the amount and the compound interest in  the following by using the formulae when:
Principal = Rs 12800, Rate = \[7\frac{1}{2} %\], Time = 3 years

Sum
Advertisements

Solution

\[\text{ Applying the rule A = P }\left( 1 + \frac{R}{100} \right)^n \text{ on the given situations, we get: }\]
\[A = 12, 800 \left( 1 + \frac{7 . 5}{100} \right)^3 \]
\[ = 12, 800 \left( 1 . 075 \right)^3 \]
 = Rs 15, 901 . 40
Now, 
CI = A - P
 = Rs 15, 901 . 40 - Rs 12, 800
 = Rs 3, 101 . 40

shaalaa.com
  Is there an error in this question or solution?

Video TutorialsVIEW ALL [1]

RELATED QUESTIONS

A scooter was bought at Rs 42,000. Its value depreciated at the rate of 8% per annum. Find its value after one year.


Compute the amount and the compound interest in  the following by using the formulae when:
Principal = Rs 5000, Rate = 10 paise per rupee per annum, Time = 2 years


Three years ago, the population of a town was 50000. If the annual increase during three successive years be at the rate of 4%, 5% and 3% respectively, find the present population.


In a factory the production of scooters rose to 46305 from 40000 in 3 years. Find the annual rate of growth of the production of scooters.


The production of a mixi company in 1996 was 8000 mixies. Due to increase in demand it increases its production by 15% in the next two years and after two years its demand decreases by 5%. What will be its production after 3 years?


On the construction work of a flyover bridge there were 320 workers initially. The number of workers were increased by 25% every year. Find the number of workers after 2 years.


The population of a city was 20,000 in the year 1997. It increased at the rate of 5% p.a. Find the population at the end of the year 2000.


A TV was bought at a price of ₹ 21,000. After one year the value of the TV was depreciated by 5% (Depreciation means reduction of value due to use and age of
the item). Find the value of the TV after one year.

The cost of a sewing machine is Rs 7,000. Its value depreciates at 8% p.a. Then the value of the machine after 2 years is Rs 5,924.80.


The population of a town was decreasing every year due to migration, poverty and unemployment. The present population of the town is 6,31,680. Last year the migration was 4% and the year before last, it was 6%. What was the population two years ago?


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×