This quiz works best with JavaScript enabled. Home > Unit V Mathematical Reasoning And Aptitude > Arithmetic Series – Quiz 32 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Arithmetic Series Quiz 32 (10 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The sum of ages of 5 children born at the intervals of 3 years each is 50 years. What is the age of the youngest child? A) 4 years. B) 8 years. C) 10 years. D) None of these. Show Answer Correct Answer: A) 4 years. 2. Given the sequence: 25, 21, 17, 13, ..... Write the explicit equation that models the sequence. A) A$_{n}$ = 25 + 4(n-1). B) A$_{n}$ = 25 + 21(n-1). C) A$_{n }$= 25-4(n-1). D) A$_{n}$ = 13 + 4(n-1). Show Answer Correct Answer: C) A$_{n }$= 25-4(n-1). 3. Determine the number of terms in the arithmetic sequence given the following: $a_1=19,\ a_n=96,\ S_n=690$ A) 9. B) 10. C) 11. D) 12. Show Answer Correct Answer: D) 12. 4. The common difference of an arithmetic sequence is ..... A) An integer. B) A fraction. C) A decimal. D) All of these. Show Answer Correct Answer: D) All of these. 5. What is the next number in the arithmetic series: 2, 5, 8, 11, .....? A) 20. B) 14. C) 17. D) 23. Show Answer Correct Answer: B) 14. 6. If (x+1), 3x and (4x+2) are first three terms of an AP, then the value of x is: A) 3. B) 4. C) 1. D) 2. Show Answer Correct Answer: A) 3. 7. 5, 7.5,..?.., 12.5 A) 10. B) 22.5. C) 100. D) 150. Show Answer Correct Answer: A) 10. 8. The sum of first 10 multiples of 7 is A) 315. B) 371. C) 385. D) 406. Show Answer Correct Answer: C) 385. 9. If you are trying to determine how many terms are in a sequence, what formula do you need to use to find n? A) $S_n=\frac{n}{2}(a_1+a_n)$. B) $a_n=a_1+\left(n-1\right)\left(d\right)$. Show Answer Correct Answer: B) $a_n=a_1+\left(n-1\right)\left(d\right)$. 10. Is the sequence arithmetic? If so, state the common difference.35, 40, 50, 55, ..... A) No. B) Yes, common difference = 5. C) Yes, common difference = 10. D) Yes, common difference = 15. Show Answer Correct Answer: A) No. ← 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