This quiz works best with JavaScript enabled. Home > Unit V Mathematical Reasoning And Aptitude > Averages – Quiz 7 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Averages Quiz 7 (10 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The arithmetic mean of the two numbers X$_{1}$ and X$_{2}$ is 5. If X$_{1}$=3, then X$_{2}$ is: A) 3. B) 5. C) 7. D) 10. Show Answer Correct Answer: C) 7. 2. Find the mean of these numbers:5,11,2,12,4,2 A) 4.1. B) 6. C) 4.5. D) 4. Show Answer Correct Answer: B) 6. 3. Calculate the mean:57, 32, 45, 38, 42, 54, 51, 39, 47, 43, 36, 56 A) 54. B) 49. C) 60. D) 45. Show Answer Correct Answer: D) 45. 4. Lillian's test grades during the past five weeks were 90, 97, 100, 100, 92. What grade will she need to get on this week's test in order to have an average of 95? A) 85. B) 91. C) 97. D) 98. Show Answer Correct Answer: B) 91. 5. There can be more than one mean A) True. B) False. Show Answer Correct Answer: B) False. 6. The average (arithmetic mean) of two numbers is 4x. If one of the numbers is y, then the value of the other number is A) $x-4y$. B) $4x+4y$. C) $8x-4y$. D) $4y-8x$. E) $8x-y$. Show Answer Correct Answer: E) $8x-y$. 7. Find the average of 11, 5, 2 A) 4. B) 5. C) 6. D) 7. Show Answer Correct Answer: C) 6. 8. Find the average of 77 & 54 A) 65.5. B) 66.5. C) 64.5. D) 63.5. Show Answer Correct Answer: A) 65.5. 9. What is the batting average of a player with 351 official at-bats and 340 hits? A) 0.969. B) 0.768. C) 0.859. D) 0.736. Show Answer Correct Answer: A) 0.969. 10. Amy drove to her mother's house, which is 204 miles away. If it took her 3 hours, what was her average speed per hour? A) 68 miles. B) 85 miles. C) 102 miles. D) 51 miles. Show Answer Correct Answer: A) 68 miles. ← PreviousNext →Related QuizzesAverages Quiz 1Averages Quiz 2Averages Quiz 3Averages Quiz 4Averages Quiz 5Averages Quiz 6Averages Quiz 8Averages Quiz 9Averages Quiz 10Averages Quiz 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books