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ICSE Worksheet for chapter-12 Simple Interest and Compound Interest class 9

Worksheet For class 9

This page consists of ICSE Class 9 Maths Worksheet for chapter- Simple Interest and Compound Interest prepared by Physics Wallah. All questions of Simple Interest and Compound Interest are with detail solutions for reference. Find out all worksheet for class 9 Maths. Do follow NCERT Solutions for class 9 Maths prepared by Physics Wallah. For additional information related to the subject you can check the Maths Formula section.

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Simple interest

If the principal remains the same throughout the loan period, then the interest paid by the borrower is called Simple interest.

S.I. = P (1+R/100)n

Compound interest:

If the borrower and the lender agree to fix up a certain interval of time so that the Amount =(Principle+ Interest) at the end of an interval becomes the principal for the next interval, then the total interest over all the intervals calculated in this way is called compound interest.

Let P be the principle and the rate of interest be R% per annum. If the interest is compounded annually then the amount A and the compound interest C.I, at the end of n years.

Given by A = P (1+R/100)n

and C.I = A-P=P{(1+R/100)n-1} respectively.

EXERCISE

Q1. A sum of money amount to Rs. 1237.50 and Rs. 1443.75 in 4 and 6 years respectively at a simple rate of interest. Find the principal and rate of interest.

Q2. Find the compound interest on Rs. 8000 for 3/2 years at 10% per annum, interest being payable half yearly.

Q3. Find the compound interest on Rs. 12000 for 3 years at 10% per annum, compounded annually.

Q4. In what time will Rs. 64000 amount to Rs.68921 at 5% per annum, interest being compounded half yearly?

  1. 3/2 years
  2. 2/3 years
  3. 2 years
  4. none of these

Q5. At what percent per annum, simple interest will double a sum of money in 12 years?

  1. 25/3%
  2. 24%
  3. 25/4%
  4. 8.25%

Q6. A sum of Rs. 500 was lent for 2 years at 2% compound interest. The interest for two years will be:

  1. Rs. 20
  2. Rs.25
  3. Rs.50.20
  4. Rs.20.20

Q7. Compute the compound interest on Rs. 1000for 2 years at 10%per annum when compounded half yearly.

  1. Rs. 315.15
  2. Rs.200
  3. Rs.215.50
  4. None of these

Q8. Find the compound interest on Rs. 24000 at 15% per annum for 7/3 years.

  1. Rs. 9327
  2. Rs. 9723
  3. Rs. 9372
  4. Rs. 9237

Solutions

  1. P= Rs. 825, R= 12.5%
  2. Rs. 1261
  3. Rs. 3972
  4. (a)
  5. (a)
  6. (d)
  7. (c)
  8. (a)

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