19 multiple choice questions to test your understanding.
See answers immediately after selecting
Q1. Which of the following is an arithmetic progression?
Q2. What is the common difference of 5, 10, 15, 20, ...?
Q3. Find the 6th term of the AP: 2, 5, 8, 11, ...
Q4. Which term of the AP 3, 7, 11, 15, ... is 51?
Q5. What is the sum of the first 10 terms of 1, 2, 3, 4, ...?
Q6. If the nth term of an AP is 2n + 1, what is the first term?
Q7. Find the arithmetic mean of 5 and 15.
Q8. The sum of first n terms of an AP is Sₙ = 2n². Find the first term.
Q9. How many two-digit numbers are divisible by 3?
Q10. If a = 5, d = -2, find a₅.
Q11. In an AP, a = 3, d = 0.5, find Sₙ for n = 20.
Q12. The 7th term of an AP is 32 and the 12th term is 52. Find the common difference.
Q13. If 20 is the AP term for a = 2, d = 3, which term is it?
Q14. The sum of the first 5 terms of an AP is 25. If first term is 1, find the common difference.
Q15. Which sequence is an AP?
Q16. For AP with first term a, common difference d, what is a + a₂ + a₃?
Q17. The sum formula Sₙ = n/2 × [2a + (n-1)d] simplifies to:
Q18. How many terms in the AP 1, 3, 5, 7, ..., 99?
Q19. Find the middle term of AP 3, 8, 13, 18, 23.