Practice Important Formulae - 2.3 | 2. Commercial Mathematics | ICSE Class 9 Maths
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2.3 - Important Formulae

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Learning

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

If an item is bought for $30 and sold for $50, what is the profit?

💡 Hint: Use the formula Profit = S.P. - C.P.

Question 2

Easy

What is the cost price if the selling price is $80 and profit is $40?

💡 Hint: Use the formula C.P. = S.P. - Profit.

Practice 4 more questions and get performance evaluation

Interactive Quizzes

Engage in quick quizzes to reinforce what you've learned and check your comprehension.

Question 1

What is the formula for calculating profit percentage?

  • \\(\\frac{Profit}{C.P.} \\times 100\\)
  • \\(\\frac{C.P.}{Profit} \\times 100\\)
  • \\(\\frac{S.P.}{C.P.} \\times 100\\)

💡 Hint: Recall how profit relates to cost price.

Question 2

If the selling price is $120 and the cost price is $100, what is the profit?

💡 Hint: Remember the profit formula.

Solve 1 more question and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

A bike is bought for $800 and is sold at a loss of 15%. Calculate the selling price and the actual loss incurred.

💡 Hint: Use loss formulas to derive both values.

Question 2

An item is marked at $600, and a discount of 20% is offered. Calculate the selling price after applying the discount. If the cost was $500, what profit or loss occurs?

💡 Hint: Calculate the discount first, then use the selling price to find profit or loss against the cost price.

Challenge and get performance evaluation