Bank Exams Exam > Bank Exams Videos > IBPS PO Prelims & Mains Preparation > Practice Questions: Ratios
Practice Questions: Ratios Video Lecture | IBPS PO Prelims & Mains Preparation - Bank Exams
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FAQs on Practice Questions: Ratios Video Lecture - IBPS PO Prelims & Mains Preparation - Bank Exams
| 1. What is a ratio and how is it calculated? |  |
Ans. A ratio is a comparison between two or more quantities. It is calculated by dividing one quantity by another and expressing the result in the form of a fraction or a colon. For example, if we have 2 red marbles and 5 blue marbles, the ratio of red marbles to blue marbles would be 2:5.
| 2. What are the different types of ratios? | |
Ans. There are several types of ratios, including:
- Simple ratio: This compares two quantities of the same kind, such as the ratio of boys to girls in a classroom.
- Compound ratio: This compares two or more simple ratios, such as the ratio of boys to girls in two different classrooms.
- Rate ratio: This compares two quantities with different units of measurement, such as the ratio of miles driven to gallons of gas used.
- Proportional ratio: This refers to a ratio where the quantities being compared are in direct proportion, meaning they increase or decrease at the same rate.
| 3. How can ratios be used to solve problems? | |
Ans. Ratios can be used to solve various types of problems. They can help in scaling quantities, determining proportions, and making comparisons. For example, if a recipe calls for 2 cups of flour and you want to make half the recipe, you can use the ratio 2:1 to determine that you will need 1 cup of flour. Ratios can also be used to solve problems involving proportions, such as finding the missing value in a proportion equation.
| 4. How do you simplify a ratio? | |
Ans. To simplify a ratio, you need to find the greatest common divisor (GCD) of the two numbers in the ratio and divide both numbers by the GCD. This will give you the simplest form of the ratio. For example, if you have a ratio of 6:9, the GCD of 6 and 9 is 3. Dividing both numbers by 3, the simplified ratio would be 2:3.
| 5. What is the difference between a ratio and a proportion? | |
Ans. While both ratios and proportions involve comparisons between quantities, there is a key difference between the two. A ratio is a simple comparison between two or more quantities, while a proportion is an equation that states that two ratios are equal. In other words, a proportion is a statement that two ratios are in proportion to each other. For example, the ratio 4:6 is not a proportion, but if we compare it to the ratio 2:3 and state that they are equal, we have a proportion: 4:6 = 2:3.
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