## Course: CA Foundation; Topic: Ratio

### Learning Objective:

How to solve word problem relating to ratios and earnings?

### Concept:

A ratio is a comparison of the sizes of two or more quantities of the same kind by division.

Both the terms of a ratio can be multiplied or divided by the same non-zero number.

Usually a ratio is expressed in lowest terms.

The order of the terms in a ratio is important.

Ratio exists only between quantities of the same kind. Quantities to be compared must be in same units.

To compare two ratios, convert them into equivalent like fractions.

### Exercise 1A, Question 18, CA Foundaton Study Material

### Question: P, Q and R are three cities. The ratio of average temperature between P and Q is 11 : 12 and that between P and R is …?

𝐎𝐩𝐭𝐢𝐨𝐧 (𝐀) : (22 : 27)

𝐎𝐩𝐭𝐢𝐨𝐧 (𝐁) : (27 : 22)

𝐎𝐩𝐭𝐢𝐨𝐧 (𝐂) : (32 : 33)

𝐎𝐩𝐭𝐢𝐨𝐧 (𝐃) : None of these