In this chapter, we will study about Ratio, Proportion and Unitary method. The comparison of two quantities or numbers by division is known as the ratio, which is mathematically denoted by the symbol ‘ : ’ between the quantities. Example: a ratio b is written as a:b.

Four quantities are said to be in proportion if the ratio of the first and the second is equal to the ratio of the third and the fourth quantity. Such as, four quantities be a,b,c,d then a:b = c:d, are said to be in proportion.

The method in which the value of one unit and then finding the necessary value by cross multiplication technique is known as the unitary method.

Practice problems on Ratio, Proportion and Unitary method through solved RD Sharma solutions to have a better understanding of the topic.

Chapter 9 Ratio, Proportion and Unitary Method | |||

Ratio, Proportion and Unitary Method Exercise 9.1 | Ratio, Proportion and Unitary Method Exercise 9.2 | ||

Ratio, Proportion and Unitary Method Exercise 9.3 | Ratio, Proportion and Unitary Method Exercise 9.4 |