Practice Example 2 - 2.3 | 15. Finite Series | IB Class 10 Mathematics – Group 5, Algebra
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Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What is the common ratio of the geometric series 1, 2, 4, 8?

💡 Hint: Divide any term by the previous term.

Question 2

Easy

In the geometric series, what is the first term of 3, 9, 27?

💡 Hint: Look for the initial value in the sequence.

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Interactive Quizzes

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

Question 1

What is a geometric series?

  • The sum of a sequence
  • The product of a sequence
  • Random values

💡 Hint: Consider what a series represents.

Question 2

True or False: A common ratio in a geometric series can be negative.

  • True
  • False

💡 Hint: Think about how values can change in sequences.

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Challenge Problems

Push your limits with challenges.

Question 1

A stock's price doubles every year. If it starts at $100, what will be its price after 5 years? Use a geometric series to find the total value.

💡 Hint: Focus on how each year's growth compounds.

Question 2

A virus's population triples every week. If initially, there are 5 bacteria, calculate how many there will be after 4 weeks.

💡 Hint: Each week's population is based on the previous week's by multiplying by 3.

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