Professional Courses
Industry-relevant training in Business, Technology, and Design to help professionals and graduates upskill for real-world careers.
Categories
Interactive Games
Fun, engaging games to boost memory, math fluency, typing speed, and English skills—perfect for learners of all ages.
Typing
Memory
Math
English Adventures
Knowledge
Enroll to start learning
You’ve not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take mock test.
Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the 5th term of the AP: 10, 15, 20?
💡 Hint: Use the formula a_n = a + (n-1)d.
Question 2
Easy
Find the 8th term in the sequence: 3, 6, 9.
💡 Hint: What is the common difference?
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 nth term of an AP?
- a + n*d
- a + d*(n-1)
- n - a + d
💡 Hint: Think back to the definition of an AP!
Question 2
True or False: The common difference in an AP can be negative.
- True
- False
💡 Hint: Consider how an AP can decrease.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
If the 5th term of an AP is 30, and the common difference is 2, what is the 15th term?
💡 Hint: Use the nth term formula.
Question 2
Can you prove that the sum of the first n terms of an AP can be derived using the formula (n/2)(first term + last term)?
💡 Hint: Rearranging S can help to identify patterns.
Challenge and get performance evaluation