This quiz works best with JavaScript enabled. Home > Unit V Mathematical Reasoning And Aptitude > Arithmetic Series – Quiz 21 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Arithmetic Series Quiz 21 (10 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Write an explicit formula for the sequence 45, 40, 35, 30, ..... Hint: The sequence is arithmetic so use this formula: $a_n=a_1+d\left(n-1\right)$ A) $a_n=45+5\left(n-1\right)$. B) $a_n=45-5\left(n-1\right)$. C) $a_n=5+45\left(n-1\right)$. D) $a_n=5-45\left(n-1\right)$. Show Answer Correct Answer: B) $a_n=45-5\left(n-1\right)$. 2. This summation is the same as which series? A) 1 + 2 + 3 + 4 + 5 + 6. B) (1-2) + (2-2) + (3-2) + (4-2) + (5-2) + (6-2). C) (1-2) + (6-2). D) (1-2) + (2-2) + (3-2) + (4-2). Show Answer Correct Answer: B) (1-2) + (2-2) + (3-2) + (4-2) + (5-2) + (6-2). 3. Which sequence has a common difference of 5? A) 0,-5,-10,-15,-20. B) 0, 5, 10, 15, 20. C) 0, 5, 25, 125, 625. D) 0, 0.25, 0.5, 0.75, 1. Show Answer Correct Answer: B) 0, 5, 10, 15, 20. 4. Find the next three terms in the arithmetic sequence:-33,-24,-15,-6, ..... A) -1, 7, 15. B) -5, 2, 9. C) 3, 12, 21. D) -65,-73,-81. Show Answer Correct Answer: C) 3, 12, 21. 5. 14 18 22 26 30 ..... A) 34 38. B) 36 40. C) 33 37. D) 38 42. Show Answer Correct Answer: A) 34 38. 6. Find the missing number in the arithmetic series: 13, 16, ....., 22, 25. A) 19. B) 23. C) 20. D) 18. Show Answer Correct Answer: A) 19. 7. In an Arithmetic Progression, common difference d = 3, then t$_{5}$-$_{}$t$_{7}$ is equal to ..... A) 2. B) -2. C) 6. D) -6. Show Answer Correct Answer: D) -6. 8. What is the common difference? 111, 84, 57, A) 17. B) -17. C) 27. D) -27. Show Answer Correct Answer: D) -27. 9. What is the rule for this pattern?32,36,40,44 A) Add 4. B) Multiply 2. C) Subtract 4. D) Divide by 2. Show Answer Correct Answer: A) Add 4. 10. What is the common difference of the sequence: 6, 13, 20, 27, 34, ..... A) 4. B) 5. C) 6. D) 7. Show Answer Correct Answer: D) 7. ← PreviousNext →Related QuizzesArithmetic Series Quiz 1Arithmetic Series Quiz 2Arithmetic Series Quiz 3Arithmetic Series Quiz 4Arithmetic Series Quiz 5Arithmetic Series Quiz 6Arithmetic Series Quiz 7Arithmetic Series Quiz 8Arithmetic Series Quiz 9Arithmetic Series Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books