English

Find Compound Interest on Rs 31250 for 3 Years, If the Rates of Interest for 1st,2nd and 3rd Years Be 8%, 10% and 12% Respectively.

Advertisements
Advertisements

Question

Find compound interest on Rs 31250 for 3 years, if the rates of interest for 1st,2nd and 3rd years be 8%, 10% and 12% respectively.

Sum
Advertisements

Solution

Here P = Rs.31250, t = 3 years, r = 8%, 10%, 12% successively.
Now, Amount
= `"P"(1 + "r"_1/100)(1 + "r"_2/100)(1 + "r"_3/100)`

= `31250(1 + 8/100)(1 + 10/100)(1 + 12/100)`

= `31250(108/100)(110/100)(112/100)`
= 41580
Hence, Amount = Rs.41580.

shaalaa.com
Concept of Compound Interest - Use of Compound Interest in Computing Amount Over a Period of 2 Or 3-years
  Is there an error in this question or solution?
Chapter 3: Compound Interest - Exercise 3.2

APPEARS IN

Frank Mathematics [English] Class 9 ICSE
Chapter 3 Compound Interest
Exercise 3.2 | Q 6

RELATED QUESTIONS

In what time will Rs. 1500 yield Rs. 496.50 as compound interest at 10% per annum compounded annually?


The compound interest, calculated yearly, on a certain sum of money for the second year is Rs. 1320 and for the third year is Rs. 1452. Calculate the rate of interest and the original sum of money


Calculate the amount and the compound interest for the following:

Rs.17,500 at 12°10 p.a. in 3 years


Calculate the amount and the compound interest for the following:

Rs. 76, 000 at 10 °/o p.a. in `2 1/2` years


The value of a machine depreciates by 10%, 12% and 15% in the first 3 years. Express the total depreciation of the machine as a single per cent during the three years.


Rohit borrows Rs. 86,000 from Arun for two years at 5% per annum simple interest. He immediately lends out this money to Akshay at 5% compound interest compounded annually for the same period. Calculate Rohit's profit in the transaction at the end of two years.


Find the amount and the compound interest payable annually on:
Rs.17500 for 3 years at 8%, 10% and 12% for the successive years.


Find the difference between the compound interest and simple interest on Rs 20,000 at 12% per annum for 3 years, the compound interest being payable annually.


The value of a mobile depreciated by 5% per year during the first two years and 10% per year during the third year. Express the total depreciation of the value of the mobile in percent during the three years.


What principal will amount to Rs.15729 in two years, if the rate of interest for successive years are 5% and 7% respectively, the interest is being compounded annually.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×