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Questions and Answers
What is the average of the first 6 even numbers?
What is the average of the first 6 even numbers?
What is the total age of the boys in the class before including the teacher's age?
What is the total age of the boys in the class before including the teacher's age?
What is the total temperature recorded from Monday to Thursday?
What is the total temperature recorded from Monday to Thursday?
What was Sachin’s average score after 16 innings if the total score for 17 innings is given?
What was Sachin’s average score after 16 innings if the total score for 17 innings is given?
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How is the temperature for Tuesday to Thursday calculated based on the total recorded temperature?
How is the temperature for Tuesday to Thursday calculated based on the total recorded temperature?
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What is the new boy's age calculated from the average decrement?
What is the new boy's age calculated from the average decrement?
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What is the equation used to find the 6th value in a series of results?
What is the equation used to find the 6th value in a series of results?
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What is the average temperature from Tuesday to Friday based on the total temperature?
What is the average temperature from Tuesday to Friday based on the total temperature?
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What is the required profit percentage when the cost price of the bicycle is 1200 and the selling price is 1500?
What is the required profit percentage when the cost price of the bicycle is 1200 and the selling price is 1500?
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How much does the boy save monthly if he saves 50% of his total salary `400?
How much does the boy save monthly if he saves 50% of his total salary `400?
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What is the annual savings amount if the boy saves `10 monthly?
What is the annual savings amount if the boy saves `10 monthly?
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What is 20% of `70?
What is 20% of `70?
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If a bicycle's selling price is 1500 and its cost price is 1200, what is the absolute profit gained?
If a bicycle's selling price is 1500 and its cost price is 1200, what is the absolute profit gained?
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If a reduction of 15% is applied to an amount of `200, how much is the final amount after reduction?
If a reduction of 15% is applied to an amount of `200, how much is the final amount after reduction?
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What is 25% of 10 meters calculated in centimeters?
What is 25% of 10 meters calculated in centimeters?
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What will be the total salary if 20% of the salary equals `240?
What will be the total salary if 20% of the salary equals `240?
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What is the required profit percentage if the selling price is $330 and the cost price is $300?
What is the required profit percentage if the selling price is $330 and the cost price is $300?
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If 84% is the result after applying a 10% discount, what was the original price before the discount?
If 84% is the result after applying a 10% discount, what was the original price before the discount?
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What is the new price of a car originally priced at $500000 after applying a 10% discount?
What is the new price of a car originally priced at $500000 after applying a 10% discount?
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How many marks did a student need to achieve to increase their overall score from 18 to 22?
How many marks did a student need to achieve to increase their overall score from 18 to 22?
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If a student's performance increased to approximately 70%, what was their original score if they scored 725?
If a student's performance increased to approximately 70%, what was their original score if they scored 725?
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What is the percentage of girls in a district if there are 240 girls out of a total population of 600?
What is the percentage of girls in a district if there are 240 girls out of a total population of 600?
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If a population of 2,000,000 increases by 11% in one year, what will be the new population?
If a population of 2,000,000 increases by 11% in one year, what will be the new population?
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When calculating 90% of 300 and adding 30% of 90, what is the resulting total?
When calculating 90% of 300 and adding 30% of 90, what is the resulting total?
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If the winning candidate received 60% of the total votes, what percentage of the votes did the defeated candidate receive?
If the winning candidate received 60% of the total votes, what percentage of the votes did the defeated candidate receive?
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In a school with 5600 students where 60% are boys, how many girls are there?
In a school with 5600 students where 60% are boys, how many girls are there?
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A boy scored 25 marks out of 80. If he fails by 15 marks, what is the passing mark?
A boy scored 25 marks out of 80. If he fails by 15 marks, what is the passing mark?
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If a man's monthly income is such that after spending 85% he saves ₹4560, what is his monthly income?
If a man's monthly income is such that after spending 85% he saves ₹4560, what is his monthly income?
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To pass, a student needs 40% marks. If they score 20 marks and fail by 20 marks, what is the maximum marks possible?
To pass, a student needs 40% marks. If they score 20 marks and fail by 20 marks, what is the maximum marks possible?
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What is the per cent increase in population if it is stated to be 20%?
What is the per cent increase in population if it is stated to be 20%?
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What is the percentage of marks obtained by a boy scoring 25 out of 80?
What is the percentage of marks obtained by a boy scoring 25 out of 80?
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What is the total number of students in the school if the number of boys is 60% of 5600?
What is the total number of students in the school if the number of boys is 60% of 5600?
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What is equivalent to 1/8 as a percentage?
What is equivalent to 1/8 as a percentage?
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If a man receives a 10% increase in salary and his new salary is ₹10,285, what was his original salary?
If a man receives a 10% increase in salary and his new salary is ₹10,285, what was his original salary?
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What percentage of ₹2.50 is 40 paise?
What percentage of ₹2.50 is 40 paise?
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What is 600% expressed in decimal form?
What is 600% expressed in decimal form?
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If 36% of pupils in a school are girls and the number of boys is 816, how many girls are there?
If 36% of pupils in a school are girls and the number of boys is 816, how many girls are there?
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What is 20% of 60?
What is 20% of 60?
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If a student scores 60% in Maths and 3 marks less in Science, scoring a total of 150 marks, how many marks did he score in Science?
If a student scores 60% in Maths and 3 marks less in Science, scoring a total of 150 marks, how many marks did he score in Science?
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Chalk contains 10% calcium, 3% carbon, and 12% oxygen. What is the amount of each in 1 kg of chalk?
Chalk contains 10% calcium, 3% carbon, and 12% oxygen. What is the amount of each in 1 kg of chalk?
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Study Notes
Percentage Calculations
- 150% is equivalent to 1.5 (Divide 150 by 100)
- 84% is equivalent to 0.84 (Divide 84 by 100)
- To find the percentage of a number, multiply the number by the percentage and then divide by 100.
- 40% of 20% is 8%
- X% is equal to X/100
- 6.25% is equivalent to 0.0625 (Divide 6.25 by 100)
- 20% is equivalent to 0.2 (Divide 20 by 100)
- Expressing 1 as a percentage gives 100%
- 40 paise is 16% of 2.50 rupees
- 600% is equal to 6.0 (Divide 600 by 100)
- 20% of 60 is equal to 12
- To calculate a percentage of a given number, multiply the percentage by the number and then divide by 100.
- 27 is 30% of 90 (Divide 27 by 90 and multiply by 100)
- To find the percentage equivalence of two values, divide the smaller value by the larger value and multiply by 100.
Age and Average Calculations
- The average age of a group can be determined by dividing the total age of the group by the number of individuals in the group.
- If the average age of a group is 25 and there are 2 individuals, then the total age of the group is 50
- Given the total age and the number of individuals, the average age can be calculated.
- Calculate total age of group by multiplying the average age by the number of people in the group.
- Calculate the age of a new individual in a group by taking the difference between the total age of the group before and after the new member joins.
Miscellaneous
- Given the pass mark and the marks achieved by a student, the maximum marks can be calculated.
- The total number of votes in an election can be calculated if percentage of votes received by respective candidates is given.
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Description
This quiz covers key concepts related to percentage calculations and how to compute averages. You'll learn formulas for converting percentages, calculating percentages of numbers, and determining average ages in different groups. Test your understanding through various examples and problems!
