Arithmetical Problems

This chapter deals with the concept of ratio and proportion and lists their important properties. Here, we will learn how to compare ratios. It also covers the conversion of ratios into their simplest forms through the examples.

In this chapter, we will learn how to solve a mathematical problem through a unitary method with the help of solved examples. Here, we will also learn the concept of direct and inverse variations with their rules.

This chapter covers various rules to convert fractions, ratios and decimal numbers into percentage and vice versa. It consists of word problems on percentage, along with examples. We will also study the applications of percentage in daily life.

This chapter introduces us to the terms profit, loss, and discount. It teaches us to find the selling price and cost price of an object when one of them is given. It also covers the concept of loss or profit percentage with examples.

In this chapter, we will learn the concept of average by discussing the various examples. It highlights the methods of finding the average of quantities. We will also go through the average speed with its formula.

In this chapter, we will perform a detailed study on the concept of simple interest with some related terms. We will learn how to find out the principle, rate, amount and interest on a certain amount of money with the help of illustrative examples.