Averages Quiz 3 March 1, 2012 by kumar Leave a Comment 1. The average age of the 25 men is 13.6 yrs.What will be the average age,if 15 new men added to them whose average age is 13.2 yrs?A. 13 yrsB. 13.75 yrsC. 13.45 yrsD. 14 yrs 2. If x,y,z,p,q are five consecutive odd numbers then their average isA. (x+4)B. 5(x+y+z+p+q)C. x+y+z+p+qD. None of these 3. The average of consecutive odd numbers to 70 isA. 50B. 70C. 36D. 46 4. The average of 4 consecutive numbers is 12.which is the lowest odd number?A. 10B. 7C. 9D. 3 5. The average of 6 consecutive odd numbers is 48,what is the difference between the smallest and the largest numbers?A. 10B. 9C. 12D. 20 6. The average of the first and the second of three numbers is 15 more than the average of the second and the third of these numbers.what is the difference between the first and third of these numbers?A. 15B. 45C. 60D. None of these 7. The average of 6 numbers is 4.5,then the sum of the numbers divided by 32 isA. 4B. 3C. 8D. 6 8. What is the average of x+1,x+2,x+3,x+4,x+5?A. x+2 1/2B. x+1C. 4x+10D. 6x+15 9. The mean of the cubes of the first n natural numbers isA. n^2B. n(n+1)/3C. n(n+1)^2/4D. n^3 10. prasann a walks 9 km at a speed of 6 km per hour.At what Speed would she need to travel during the next 1.5 hrs to have an average speed of 9 km per hour for the entire walking session?A. 10 kmphB. 12 kmphC. 8 kmphD. 15 kmph 11. The average of 6 numbers is n and the average of three of these is a.If the average of the remaining three is b ,thenA. n=a+bB. 2n=a+bC. a+bD. 2n 12. In practicals,the average of 11 experiments was 90.If the average of the first 5 experiments is 87 and that of the last 5 is 84,then the 6th experiment value isA. 140B. 150C. 130D. 135 13. What is the arithmetic mean of 3,1,7,9,17,21,14,7 ?A. 12B. 13C. 10D. 11 14. The average of 50 numbers is 38.If the 2 numbers 45 and 55 are left,then the average of the remaining numbers isA. 47.8B. 37.5C. 26.9D. 35.5 15. A student marks in 3 subjects are 50,60,70 .The average percentage of marks in all the three subjects isA. 70B. 80C. can't determinedD. None of these Related posts: Averages Quiz 1 Averages Quiz 2

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