Average- Mean, Median & Mode (Chapter-1): 110 Important MCQs for Indian Competitive Exam Prep Quantitative AptitudeTest 1Test 2Test 3Test 4Test 50% Report a question What's wrong with this question?You cannot submit an empty report. Please add some details. Average-Mean, Median & Mode Quiz Test-320 MCQs20 Marks30 Minutes 1 / 20Out of four numbers the average of the first three is 16 and that of the last three is 15. If the last number is 20, than first number is 15 19 23 22 2 / 20The average of 5 quantities is 10 and the average of 3 of them is 9. What is the average of the remaining 2? 11 12.5 11.5 10.2 3 / 20The algebraic sum of deviation of a set of n values from Mean is 0 n 1 Can't be determined 4 / 20The average of three consecutive odd numbers is 15. What is the largest of these numbers? 15 13 19 16 Solution:Let three consecutive numbers be x, x + 1 and x + 2 Sum of 3 numbers = x + x + 1 + x + 2 = 3x + 3 And, Sum of 3 numbers = 15-3 = 45 3x + 3 = 45 3x = 42 x = 14 Highest number = x + 2 = 14 + 2 = 16 5 / 20The average of a set of 9 numbers is 27. If the largest number is removed, the average becomes 25. What is the largest number? 46 29 43 30 6 / 20The average of seven distinct positive integers is 8.Whatis the greatest possible value of one of the intergers ? 25 35 10 40 7 / 20The average age of a family of 5 members is 35 years. If the age of the youngest member is 10 years, what is the average age of the remaining family members? 40.25 years 38.61 years 42.56 years 41.25 years 8 / 20The average of 7 consecutive even numbers is 32. Which number is the largest of the 7 numbers? 40 34 36 38 Solution:Let the 7 consecutive even numbers be x, (x + 2), (x + 4), (x + 6), (x + 8), (x + 10) and (x + 12). Sum of 7 consecutive even numbers = 32 - 7 = 224 x + x + 2 + x + 4 + x + 6 + x + 8 + x + 10 + x + 12 = 224 7x + 42 = 224 x = 182/7 = 26 Therefore, the largest of the 7 numbers = 26 + 12 = 38 9 / 20The average of the first seven multiples of 3 is: 21 9 14 12 10 / 20The average of 7 consecutive even numbers is 30. Find the product of the first number and the square root of the last number. 144 160 140 134 Solution:If the given number is consecutive then the average is the middle number Like 7 consecutive number 1, 2, 3, 4, 5, 6 and 7 Then the middle number is 5rd then the average of 5th number is 30 1st number = 30 - 6 = 24 7th number = 24 + 12 = 36 Product of first number and square root last number Therefore, 24 - [(36)^0.5] = 144 11 / 20The average of 5 numbers is 12. If one of the numbers is 20, what is the sum of the remaining numbers? 44 40 38 18 12 / 20Average cost of 5 apples and 4 mangoes is Rs. 36. The average cost of 7 apples and 8 mangoes is Rs. 48. Find the total cost of 24 apples and 24 mangoes. 1044 2088 2240 2358 Solution:Average cost of 5 apples and 4 mangoes = Rs. 36 Total cost = 36 - 9 = 324 Average cost of 7 apples and 8 mangoes = 48 Total cost = 48 - 15 = 720 Total cost of 12 apples and 12 mangoes = 324 + 720 = 1044 Therefore, cost of 24 apples and 24 mangoes = 1044 - 2 = 2088 13 / 20The average weight of a class of 24 students is 36 kg. When the weight of the teacher is also included, the average weight increases by 1 kg. What is the weight of the teacher? 60 kg 61 kg 62 kg 64 kg 14 / 20The average age of a family of 5 members is 24 years. If the age of the youngest member is 8 years, then what was the average age of the family at the time of the birth of the youngest member? 20 years 24 years 30 years 27 years 15 / 20Find the variance of the given data set: 3,9,5,6,7 2 1.9 2.2 4 16 / 20The average of 11 numbers is 32. If the average of the first six numbers is 34 and that of the last six is 33, then the sixth number is 40 34 50 36 17 / 20Mukesh has twice as much money as Soham. Soham has 50% more money than Pankaj. If the average money with them is Rs. 110, then Mukesh has : 190 220 230 180 18 / 20The average of 5 consecutive odd integers is 21. What is the largest of these integers? 25 19 17 21 Solution:Let's denote the smallest odd integer as "x". Since the integers are consecutive odd integers, the next consecutive odd integers would be x + 2, x + 4, x + 6, and x + 8. Given that the average of these 5 consecutive odd integers is 21, we can write the equation for the average: Average = Total Sum / Total Number of Integers 21 = (x + x + 2 + x + 4 + x + 6 + x + 8) / 5 19 / 20The average of 5 numbers is 42. If one number is excluded, the average becomes 48. What is the excluded number? 30 50 40 70 20 / 20What is the smallest possible average of four distinct positive integers? 2 2.5 1.8 4.6 Previous 1 2 3 4 5 6NextRelated Posts Number System MCQs Test (Chapter-5) : Key 100 Questions to Competitive Exam Success Profit and Loss MCQs (Chapter-4): 100 Essential Questions for Competitive Exams in India Mastering Ratios and Proportions Mock Test (Chapter-6): 100 MCQs for Competitive ExamsLeave a Reply Cancel Reply Save my name, email, and website in this browser for the next time I comment. I have read and accepted the Privacy Policy * Δ
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