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# RD Sharma Solutions (Part - 2) - Ex-2.1, Fractions, Class 7, Math Class 7 Notes | EduRev

## RD Sharma Solutions for Class 7 Mathematics

Created by: Abhishek Kapoor

## Class 7 : RD Sharma Solutions (Part - 2) - Ex-2.1, Fractions, Class 7, Math Class 7 Notes | EduRev

The document RD Sharma Solutions (Part - 2) - Ex-2.1, Fractions, Class 7, Math Class 7 Notes | EduRev is a part of the Class 7 Course RD Sharma Solutions for Class 7 Mathematics.
All you need of Class 7 at this link: Class 7

#### QUESTION 10:

What should be added to Let x be the required fraction.
According to the question:  #### QUESTION 11:

Suman studies for hours daily. She devotes hours of her time for Science and Mathematics. How much time does she devote for other subjects?

Suman studies for hours daily. Therefore, we have She studies science and mathematics for hours. Therefore, we have Time devoted to other subjects = Total study time - Time devoted to science and mathematics #### QUESTION 12:

A piece of wire is of length If it is cut into two pieces in such a way that the length of one piece is what is the length of the other piece?

Let the length of second piece be x.
Total length of wire = Length of one piece + Length of second piece  #### QUESTION 13:

A rectangular sheet of paper is wide. Find its perimeter.

Perimeter of rectangle = 2(length + width)  #### 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? Sum along columns and rows:    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 and that of Science book is Rs Which costs more and by how much?

Cost of mathematics book = Cost of Science book  Thus, Mathematics book costs more.Difference in the cost of Mathematics and Science book =cost of Mathematics bookCost of Science book So, Mathematics book costs more by Rs #### QUESTION 16:

(i) Provide the number in box and also give its simplest from in each of the following:   97 docs

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