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Problem-Solving with Percentages

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Year 9 Mathematics - Percentages Worksheet

Problem-Solving with Percentages


🛍️ Question 1: Shopping Discount

A mobile phone originally costs $900 but is now priced at $720. Calculate the percentage decrease.

Working out space:


Answer: _______________ %

🏦 Question 2: Simple Interest

James deposits $1,500 in a bank account that earns 3.5% simple interest per year. Calculate the interest earned in 4 years.

Working out space:


Answer: $ _______________

💰 Question 3: GST Calculation

An item costs $80 and has a 25% discount. After the discount, 10% GST is added. What is the final price?

Working out space:


Answer: $ _______________

🤔 Challenge Question

A store increases the price of a jacket by 15% and then offers a 15% discount. Is the final price the same as the original?

Explain your reasoning:

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