Practice Practice Problems - 7 | 14. Geometric Sequences | IB Class 10 Mathematics – Group 5, Algebra
K12 Students

Academics

AI-Powered learning for Grades 8–12, aligned with major Indian and international curricula.

Academics
Professionals

Professional Courses

Industry-relevant training in Business, Technology, and Design to help professionals and graduates upskill for real-world careers.

Professional Courses
Games

Interactive Games

Fun, engaging games to boost memory, math fluency, typing speed, and English skills—perfect for learners of all ages.

games

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

Find the 6th term of the sequence: 2, 6, 18, 54,…

💡 Hint: Use the formula for the n-th term: T = ar^(n-1).

Question 2

Easy

Is the sequence 1, 3, 9, 27 geometric? Justify.

💡 Hint: Check the ratio of consecutive terms.

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 4th term in a geometric sequence with a=2 and r=3?

  • 6
  • 18
  • 54
  • 162

💡 Hint: Use the n-th term formula.

Question 2

An infinite geometric series converges only if the absolute value of the common ratio is less than 1.

  • True
  • False

💡 Hint: Remember the condition for convergence.

Solve and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

A company invests $100,000 in a project that appreciates in value by 8% per year. How much will it be worth in 15 years?

💡 Hint: Apply the compound interest formula.

Question 2

You observe that the size of a certain bacteria population doubles every 4 hours. If you start with a population of 250 bacteria, how large will it be after 24 hours?

💡 Hint: Determine how many doubling periods there are in 24 hours.

Challenge and get performance evaluation