RD Sharma Class 7 Solutions Chapter 9 - Ration And Proportion (Ex 9.2) Exercise 9.2

Yes, it can be summarized although you should definitely consider the chapter solutions by RD Sharma.

The relationship between the amounts of two or more objects is defined by the ratio. It's used to compare the same-kind quantities.

• It is considered to be in proportion if two or more ratios are equal.

• There are two distinct ways to express the proportion. Either an equal sign or a colon symbol can be used to represent it. (For example, a:b = c:d or a:b:: c:d)

• It has no effect on the ratio whether we multiply or divide each term of the ratio by the same number.

• If the ratio between the first and second amounts is identical to the ratio between the second and third quantities, the quantities are said to be in continuing proportion.

• If the ratio between the first and second amounts is identical to the ratio between the third and fourth quantities, the four quantities are said to be in continuing proportion.

Following are the Tips and Tricks for Solving Ratio and proportion questions-

• The only thing that can be compared is two quantities with the same units.

• Only if the two ratios are equal are they said to be in proportion.

• We may also use the cross-product approach to see if two ratios are equal and generate a proportion.

Important Notes to keep in mind about Ratio and proportion-

• It makes no difference if we multiply and divide each term of a ratio by the same number.

• If the ratio between the first and second amounts is identical to the ratio between the second and third, the three quantities are said to be in a continuous proportion.

• Similarly, in a continuous proportion of any four quantities, the ratio between the first and second is equal to the ratio between the third and fourth.

• We can write ratio and proportion in two ways: with an equal sign, as in \[\frac{a}{b} = \frac{c}{d}\], or with a colon, as in a:b = c:d.

• (the fractions \[\frac{a}{b}\] and \[ \frac{c}{d}\] are the same)

The finest study material for students who want to achieve greatness in board exams is RD Sharma Solutions for Class 7 Maths Chapter 9 Ratio and Proportion. This chapter's PDF is accessible here for students to download for free. RD Sharma Solutions are beneficial to students since they assist them in achieving high exam scores. These solutions are meticulously crafted by Vedantu subject matter experts.

Three exercises are included in Chapter 9, Ratio and Proportion. The solutions to all of the problems in these exercises may be found in RD Sharma Solutions for Class 7. The following are the topics that are covered in this chapter:

• Ratio – the ratio of two quantities of the same kind and in the same units is a fraction that shows how many times the one quantity is of the other

• The ratio in simplest form

• Comparison of ratios

• Definition and meaning of equivalent ratios

• Proportion – equality of two ratios is called proportion

• Definition of mean proportional

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