Data Handling — Important Questions
ICSE · Class 8 · Mathematics
57 important questions from Data Handling for ICSE Class 8 Mathematics, with answers. Includes multiple choice and multiple correct questions.
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Important Questions from Data Handling
In Example 4, store D sold 385 articles and store B sold 275 articles. By what percentage is store D's sale more than store B's sale?
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40%
First find the difference: 385 - 275 = 110. Then use Percentage increase = (difference/original) × 100%. So (110/275) × 100% = 40%. The answer is 40%.
In Example 4, the two highest selling stores sold 385 and 365 articles, and the two lowest selling stores sold 215 and 235 articles. What is the ratio of the total sale of the two highest selling stores to the total sale of the two lowest selling stores?
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5:3
Add the two highest sales: 385 + 365 = 750. Add the two lowest sales: 215 + 235 = 450. Now form the ratio 750:450. Divide both terms by 150 to simplify: 5:3. So the ratio is 5:3.
In Example 4, store E sold 235 articles and store B sold 275 articles. How many more articles must store E sell to catch up with store B?
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40 articles
Find the difference between store B and store E: 275 - 235 = 40. So store E must sell 40 more articles to catch up.
In Example 5, class V has 20 girls and 30 boys. What is the ratio of girls to boys in class V?
Show answer
2:3
Write the ratio as 20:30. Then simplify by dividing both numbers by 10. This gives 2:3. So the ratio of girls to boys is 2:3.
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