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# RS Aggarwal Solutions Class 7 Chapter-12 Simple Interest (Ex 12B) Exercise 12.2

Last updated date: 06th Sep 2024
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## RS Aggarwal Solutions Class 7 Chapter-12 Simple Interest (Ex 12B) Exercise 12.2 - Free PDF

Class 7 is an important class for building basics. Students of class 7 must understand the basics so that they can score better marks in higher classes and in the competitive exams as well.

Simple Interest is one of the important chapters of mathematics with the help of which we can calculate the amount of interest on the loans. Students can get a free PDF download of RS Aggarwal Solutions Class 7 Chapter-12 Simple Interest (Ex 12B) Exercise 12.2 solved by expert mathematics teachers on Vedantu. All Exercise 12.2 Questions with Solutions for Class 7 RS Aggarwal to help you to revise the complete Syllabus and Score More marks. Register for online coaching for IIT JEE (Mains & Advanced) and other engineering entrance exams. Register Online for Class 7 Science tuition on Vedantu to score more marks in the CBSE board examination.

Every NCERT Solution is provided to make the study simple and interesting on Vedantu. Vedantu is the No.1 Online Tutoring Company in India. Provides you Free PDF download of NCERT Maths Class 7 solved by Expert Teachers as per NCERT (CBSE) Book guidelines. All Chapter wise Questions with Solutions to help you to revise the complete Syllabus and Score More marks in your examinations.

Students must consult with maximum sources to get the best knowledge and understanding. Vedantu is one of the best resources for the students of class 7 to understand the Maths concepts easily.

## RS Aggarwal Solutions for Class 7 Maths Chapter 12 Exercise 12 B

Simple interest is one of the methods used to calculate the interest on a capital amount after a specific period of time with a fixed interest rate. The chapter deals with the various concepts regarding simple interest.

Exercise 12 B of RS Aggarwal class 7 maths chapter 12 (Simple interest) contains 12 sums only, but these sums are the toughest ones in the chapter. These questions are meant to target the conceptual thinking of a student and prepare them for competitive exams like JEE examinations. Solutions to all these problems are provided on the official website of Vedantu.

### Conclusion

Students can download these solutions without any charges and can access them anywhere and anytime they want to do so. These solutions of RS Aggarwal class 7 chapter 12 are a great reference module for the student’s preparation for the exams.

## FAQs on RS Aggarwal Solutions Class 7 Chapter-12 Simple Interest (Ex 12B) Exercise 12.2

1. How to Download the Solution of chapter 12 simple interest of RS Aggarwal class 7?

Interested students can download the solutions of chapter 12 Simple Interest of RS Aggarwal class 7, by visiting Vedantu. They can find these solutions in the study material section on the top bar, the famous books solutions section contain the solutions to all RS Aggarwal solutions for all the class.

Students will require to enter their Email address, to which the required PDF file of the solutions will be sent. Vedantu does not charge anything for these solutions, students can download them for free and can access them at any time.

2. Write down Formulas for finding Simple Interest in the period of a year, month and day

Like any other chapter of maths, chapter 12 simple interest also has a lot of formulas. Formulas that are used to find simple interest in various scenarios are written below

• Formula to find simple interest on an amount after a certain period, when time is given in years.

Simple Interest (S.I.) = $\frac{(P\times R\times T)}{100}$

• Formula to calculate the simple interest, when time is given in months

S.I. = $\frac{(P\times R\times T)}{100\times 12}$

• Formula to find the simple interest, when time is provided in days

S.I. =$\frac{(P\times R\times T)}{100\times 365}$

For a leap year formula changes a little 365 at the bottom becomes 366, only if the question specifies that the year is a leap year.

3. What are the two types of interests charged by financial institutions? Explain any one of them.

Interest on a capital amount charged by banks and other financial institutions is of two types. These two types of Interest are a) Simple Interest and b) Compound interest.

Simple Interest: Simple interest is calculated only on the original amount of capital, during a certain time with a specific interest rate. The formula to calculate simple interest is Simple Interest (S.I.) =$\frac{(P\times R\times T)}{100}$, where the P stands for original principal amount, R for interest rate and T for time passed.

4. Find simple interest and the resulting amount when a loan of 3500 is given for 219 days at an interest rate of 5% per annum.

A Loan of amount 3500 is given for a time period of exactly 219 days, with an interest rate of 5% p.a.

Here,

Principal (P) = Rs 3500

Intrest rate (R) = 5 % per annum

Time (T) = 219 days

The formula of finding simple interest, when time is given in days

Simple Interest = $\frac{(P\times R\times T)}{100\times 365}$ ,

or

= $\frac{(3500\times 5\times 219)}{100\times 365}$ = $\frac{( 35\times 219)}{73}$=105

Hence the resulting amount will be = Principal amount + simple interest

= 3500 + 105

= 3605 rs Ans.

5. How many questions are there in exercise 12 A?

Chapter 12 Simple Interest of class 7 RS Aggarwal is divided into two exercises, Exercise 12 A and exercise 12 B and a test paper given at the end of the chapter. These exercises contain 25, 12 and 13 problems respectively. Exercise 12 B comprises 13 questions in total.

These questions target various aspects of Simple Interest. Questions in this chapter are of finding the final amount due after a certain period of time, with a specific interest rate. And problems finding the time required to collect a certain amount of simple interest on a specific principal amount with a fixed interest rate or calculating the principal amount, or the Interest rate, if everything else is given.