Quiz-Tree

Medium - Quiz 1

What happens when percentages stack? Tackle successive changes, discounts with tax, and problems where you need to work backward to the original value.

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Question 1
An investor buys a stock for $500. The stock rises 20% during the first month and then falls 10% during the second month. What is the value of the stock at the end of the second month?
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A school has 800 students. Of these, 60% participate in at least one extracurricular activity. Among those who participate, 25% play a varsity sport. How many students play a varsity sport?
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After a 15% discount, a laptop sells for $680. What was the original price of the laptop before the discount?
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A town's population grew from 12,500 to 14,000 over a five-year period. What was the percent increase in population?
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A store prices a jacket at $120. During a sale, a 25% discount is applied first, and then 8% sales tax is added to the discounted price. What is the final amount the customer pays?
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