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Converting Percentages to "How Many?" Video Lecture | Mathematics (Maths) Class 7 (Old NCERT)

Q: 1. How do you convert percentages to 'how many'?

Ans. To convert a percentage to 'how many,' you can multiply the percentage by the whole amount and then divide by 100. This will give you the value of the percentage as a fraction or a decimal.

Q: 3. Is it possible to convert a decimal to 'how many'?

Ans. Yes, it is possible to convert a decimal to 'how many.' You can simply multiply the decimal by 100 to get the percentage value. For example, if you have a decimal of 0.75, you can convert it to a percentage by multiplying it by 100, which gives you 75%.

Q: 4. How can I convert fractions to 'how many'?

Ans. To convert a fraction to 'how many,' you can divide the numerator by the denominator and then multiply the result by 100. This will give you the value of the fraction as a percentage. For example, if you have a fraction of 3/4, you can calculate it as follows: (3/4) x 100 = 75%. So, 3/4 is equal to 75%.

Q: 5. Can you explain how to convert a ratio to 'how many'?

Ans. Converting a ratio to 'how many' involves finding the equivalent percentage. First, add up the values in the ratio to determine the total. Then, divide each value in the ratio by the total and multiply by 100 to get the percentage. For example, if you have a ratio of 2:5, the total is 2 + 5 = 7. To convert the ratio to 'how many,' you can calculate it as follows: (2/7) x 100 = 28.57%. So, a ratio of 2:5 is equivalent to 28.57%.

FAQs on Converting Percentages to "How Many?" Video Lecture - Mathematics (Maths) Class 7 (Old NCERT)

1. How do you convert percentages to "how many"?

Ans. To convert a percentage to "how many," you can multiply the percentage by the whole amount and then divide by 100. This will give you the value of the percentage as a fraction or a decimal.

2. Can you provide an example of converting a percentage to "how many"?

Ans. Sure! Let's say you have a percentage of 25% and you want to find out "how many" it represents out of a total of 80. You can calculate it as follows: (25/100) x 80 = 20. So, 25% of 80 is equal to 20.

3. Is it possible to convert a decimal to "how many"?

Ans. Yes, it is possible to convert a decimal to "how many." You can simply multiply the decimal by 100 to get the percentage value. For example, if you have a decimal of 0.75, you can convert it to a percentage by multiplying it by 100, which gives you 75%.

4. How can I convert fractions to "how many"?

Ans. To convert a fraction to "how many," you can divide the numerator by the denominator and then multiply the result by 100. This will give you the value of the fraction as a percentage. For example, if you have a fraction of 3/4, you can calculate it as follows: (3/4) x 100 = 75%. So, 3/4 is equal to 75%.

5. Can you explain how to convert a ratio to "how many"?

Ans. Converting a ratio to "how many" involves finding the equivalent percentage. First, add up the values in the ratio to determine the total. Then, divide each value in the ratio by the total and multiply by 100 to get the percentage. For example, if you have a ratio of 2:5, the total is 2 + 5 = 7. To convert the ratio to "how many," you can calculate it as follows: (2/7) x 100 = 28.57%. So, a ratio of 2:5 is equivalent to 28.57%.

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	Mathematics (Maths) Class 7 (Old NCERT) 76 videos\|452 docs\|39 tests

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76 videos|452 docs|39 tests

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