RS Aggarwal Solutions Class 7 Chapter-9 Unitary Method (Ex 9A) Exercise 9.1

At Vedantu you will find Rs Aggarwal Solutions for Class 7 Maths Chapter 9 Unitary Method with clear step-by-step explanations. These Unitary Method Solutions are incredibly popular among Class 7 students since they help you do your homework and prepare for exams swiftly. All problems and answers from Chapter 9 of the Rs Aggarwal Book for Class 7 Maths are available here for free. All of the Rs Aggarwal Solutions for Class 7 Maths has been written by specialists and are guaranteed to be correct. RS Aggarwal's Class 7 textbook uses a unitary technique. RS Aggarwal Class 7 Maths Solutions of Chapter- Unitary method Exercise-9A are available in pdf format. Chapter- The unitary technique necessitated both conceptual clarity and a high level of practice. Solve all Unitary Method questions from the RS Aggarwal Class textbook on your own.

A few Examples of Questions are : 

1. If 15 mangoes cost RS. 110, What do 39 mangoes cost ?

Solution:       Cost of 15 mangoes =      RS. 110 

                     Cost of 1 mango       =      Rs.  110/15

                     Cost of 39 mangoes =      Rs.   110/15*39

                                                      =      22*13

                                                      =      286

Assume you go to the store to buy six apples. The shopkeeper informs you that 10 apples are for Rs 100. The apples are the units in this scenario, and the cost of the fruit is the value. It's critical to understand the units and values while using the unitary technique to solve a problem.

Always write the things to be computed on the right-hand side and the things known on the left-hand side to simplify things. The number of apples is known in the problem above, but the worth of the apples is unknown. It's worth noting that this method's problems are solved using the ratio and proportion concepts.

Types of Unitary Method: 

1. Direct Variation

2. Inverse Variation

Direct Variation: 

Indirect variation, An increase or decrease in one quantity will result in a change in another quantity. An increase in the number of commodities, for example, will result in a higher price.

Furthermore, the amount of work done by a single man will be less than that done by a group of men. As a result, as the number of men increases, so does the amount of work.

Indirect Variation: 

Direct variation is the inverse of this. When one quantity is increased, the value of another quantity decreases. If we improve our speed, for example, we can complete the distance in less time. As a result, as speed increases, the trip time decreases.