Class 7 Exam  >  Class 7 Notes  >  RD Sharma Solutions for Class 7 Mathematics  >  RD Sharma Solutions (Part - 2) - Ex-2.1, Fractions, Class 7, Math

RD Sharma Solutions (Part - 2) - Ex-2.1, Fractions, Class 7, Math | RD Sharma Solutions for Class 7 Mathematics PDF Download

QUESTION 10:

What should be added to RD Sharma Solutions (Part - 2) - Ex-2.1, Fractions, Class 7, Math | RD Sharma Solutions for Class 7 Mathematics


ANSWER 10:

Let x be the required fraction.
According to the question:

RD Sharma Solutions (Part - 2) - Ex-2.1, Fractions, Class 7, Math | RD Sharma Solutions for Class 7 Mathematics

RD Sharma Solutions (Part - 2) - Ex-2.1, Fractions, Class 7, Math | RD Sharma Solutions for Class 7 Mathematics


QUESTION 11:

Suman studies for RD Sharma Solutions (Part - 2) - Ex-2.1, Fractions, Class 7, Math | RD Sharma Solutions for Class 7 Mathematics hours daily. She devotes RD Sharma Solutions (Part - 2) - Ex-2.1, Fractions, Class 7, Math | RD Sharma Solutions for Class 7 Mathematics hours of her time for Science and Mathematics. How much time does she devote for other subjects?


ANSWER 11:

Suman studies for  RD Sharma Solutions (Part - 2) - Ex-2.1, Fractions, Class 7, Math | RD Sharma Solutions for Class 7 Mathematics hours daily. Therefore, we have 

RD Sharma Solutions (Part - 2) - Ex-2.1, Fractions, Class 7, Math | RD Sharma Solutions for Class 7 Mathematics

She studies science and mathematics for  RD Sharma Solutions (Part - 2) - Ex-2.1, Fractions, Class 7, Math | RD Sharma Solutions for Class 7 Mathematics hours. Therefore, we have 

RD Sharma Solutions (Part - 2) - Ex-2.1, Fractions, Class 7, Math | RD Sharma Solutions for Class 7 Mathematics

Time devoted to other subjects = Total study time - Time devoted to science and mathematics  

RD Sharma Solutions (Part - 2) - Ex-2.1, Fractions, Class 7, Math | RD Sharma Solutions for Class 7 Mathematics


QUESTION 12:

A piece of wire is of length RD Sharma Solutions (Part - 2) - Ex-2.1, Fractions, Class 7, Math | RD Sharma Solutions for Class 7 Mathematics If it is cut into two pieces in such a way that the length of one piece is  RD Sharma Solutions (Part - 2) - Ex-2.1, Fractions, Class 7, Math | RD Sharma Solutions for Class 7 Mathematics what is the length of the other piece? 


ANSWER 12:

Let the length of second piece be x.
Total length of wire = Length of one piece + Length of second piece

RD Sharma Solutions (Part - 2) - Ex-2.1, Fractions, Class 7, Math | RD Sharma Solutions for Class 7 Mathematics

RD Sharma Solutions (Part - 2) - Ex-2.1, Fractions, Class 7, Math | RD Sharma Solutions for Class 7 Mathematics


QUESTION 13:

A rectangular sheet of paper is  RD Sharma Solutions (Part - 2) - Ex-2.1, Fractions, Class 7, Math | RD Sharma Solutions for Class 7 Mathematics wide. Find its perimeter. 

ANSWER 13:

Perimeter of rectangle = 2(length + width)

RD Sharma Solutions (Part - 2) - Ex-2.1, Fractions, Class 7, Math | RD Sharma Solutions for Class 7 Mathematics

RD Sharma Solutions (Part - 2) - Ex-2.1, Fractions, Class 7, Math | RD Sharma Solutions for Class 7 Mathematics


QUESTION 14:

In a "magic square", the sum of the numbers in each row, in each column and along the diagonal is the same. Is this a magic  square?

RD Sharma Solutions (Part - 2) - Ex-2.1, Fractions, Class 7, Math | RD Sharma Solutions for Class 7 Mathematics

ANSWER 14:

Sum along columns and rows:

RD Sharma Solutions (Part - 2) - Ex-2.1, Fractions, Class 7, Math | RD Sharma Solutions for Class 7 Mathematics

RD Sharma Solutions (Part - 2) - Ex-2.1, Fractions, Class 7, Math | RD Sharma Solutions for Class 7 Mathematics

RD Sharma Solutions (Part - 2) - Ex-2.1, Fractions, Class 7, Math | RD Sharma Solutions for Class 7 Mathematics

RD Sharma Solutions (Part - 2) - Ex-2.1, Fractions, Class 7, Math | RD Sharma Solutions for Class 7 Mathematics

Since, all the sums in the square   are equal along rows,columns and diagonals,it is a magic square. 


QUESTION 15:

The cost of Mathematics book is Rs RD Sharma Solutions (Part - 2) - Ex-2.1, Fractions, Class 7, Math | RD Sharma Solutions for Class 7 Mathematics and that of Science book is Rs  RD Sharma Solutions (Part - 2) - Ex-2.1, Fractions, Class 7, Math | RD Sharma Solutions for Class 7 Mathematics Which costs more and by how much? 

ANSWER 15:

Cost of mathematics book =RD Sharma Solutions (Part - 2) - Ex-2.1, Fractions, Class 7, Math | RD Sharma Solutions for Class 7 Mathematics

Cost of Science book RD Sharma Solutions (Part - 2) - Ex-2.1, Fractions, Class 7, Math | RD Sharma Solutions for Class 7 Mathematics

RD Sharma Solutions (Part - 2) - Ex-2.1, Fractions, Class 7, Math | RD Sharma Solutions for Class 7 Mathematics

Thus, Mathematics book costs more.Difference in the cost of Mathematics and Science book =cost of Mathematics bookCost of Science book 

RD Sharma Solutions (Part - 2) - Ex-2.1, Fractions, Class 7, Math | RD Sharma Solutions for Class 7 Mathematics

So, Mathematics book costs more by Rs RD Sharma Solutions (Part - 2) - Ex-2.1, Fractions, Class 7, Math | RD Sharma Solutions for Class 7 Mathematics

QUESTION 16:

(i) Provide the number in box RD Sharma Solutions (Part - 2) - Ex-2.1, Fractions, Class 7, Math | RD Sharma Solutions for Class 7 Mathematics and also give its simplest from in each of the following: 

RD Sharma Solutions (Part - 2) - Ex-2.1, Fractions, Class 7, Math | RD Sharma Solutions for Class 7 Mathematics

ANSWER 16:

RD Sharma Solutions (Part - 2) - Ex-2.1, Fractions, Class 7, Math | RD Sharma Solutions for Class 7 Mathematics

RD Sharma Solutions (Part - 2) - Ex-2.1, Fractions, Class 7, Math | RD Sharma Solutions for Class 7 Mathematics

The document RD Sharma Solutions (Part - 2) - Ex-2.1, Fractions, Class 7, Math | RD Sharma Solutions for Class 7 Mathematics is a part of the Class 7 Course RD Sharma Solutions for Class 7 Mathematics.
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FAQs on RD Sharma Solutions (Part - 2) - Ex-2.1, Fractions, Class 7, Math - RD Sharma Solutions for Class 7 Mathematics

1. What are RD Sharma Solutions (Part - 2) for Class 7 Math?
Ans. RD Sharma Solutions (Part - 2) for Class 7 Math is a comprehensive study material that provides step-by-step solutions to the questions given in the RD Sharma textbook. It helps students understand the concepts and solve problems effectively.
2. How can RD Sharma Solutions (Part - 2) help in understanding fractions?
Ans. RD Sharma Solutions (Part - 2) for Class 7 Math provides detailed explanations and solutions to various problems related to fractions. It covers topics like simplification, addition, subtraction, multiplication, and division of fractions. By referring to these solutions, students can strengthen their understanding of fractions and improve their problem-solving skills.
3. Are RD Sharma Solutions (Part - 2) sufficient for exam preparation?
Ans. RD Sharma Solutions (Part - 2) for Class 7 Math is a valuable resource for exam preparation. It covers all the important topics and provides comprehensive solutions to a wide range of questions. However, it is recommended to also practice additional questions and solve sample papers to have a thorough preparation for the exams.
4. Can RD Sharma Solutions (Part - 2) be used for self-study?
Ans. Yes, RD Sharma Solutions (Part - 2) for Class 7 Math can be used for self-study. The solutions are presented in a step-by-step manner, making it easy for students to understand and learn the concepts. Additionally, the solutions also provide explanations and tips to solve the problems effectively.
5. Where can I find RD Sharma Solutions (Part - 2) for Class 7 Math?
Ans. RD Sharma Solutions (Part - 2) for Class 7 Math can be found in various formats. It is available in bookstores, online platforms, and educational websites. Students can also access the solutions in PDF format, which can be downloaded and used for offline study.
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