Free Quiz on Average for CLAT & other Law Entrance Exam:
1. If a, b, c, d, e are five consecutive odd integers, then what is their average?
(a)a + 4
(b) (a + b + c + d + e) /5
(c)5(a + b + c + d + e)
(c) a + 8
(e)None of these
2. The average salary of 20 workers in an office is 1900 per month. If the manager’s salary is added, the average becomes 2000 per month. The manager’s annual salary (in ) is :
(a)24000(b)25200(c)45600(d)84000(e)None of these
3. In a coconut grove, (x + 2) trees yield 60 nuts per year per tree, x trees yield 120 nuts per year per tree and (x – 2) trees yield 180 nuts per year per tree. If the average yield per year per tree be 100, find x.
(a)4(b)2(c)8 (d)6(e)None of these
4. In a certain primary school, there are 60 boys of age 12 each, 40 of age 13 each, 50 of age 14 each and 50 of age 15 each. The average age (in years) of the boys of the school is :
(a)13.50(b)13(c)13.45(d)14(e)None of these
5. The average age of 24 students and the class teacher is 16 years. If the class teacher’s age is excluded, the average reduces by 1 year. What is the age of the class teacher?
(a)50 years(b)45 years(c)40 years(d)Data inadequate(e)None of these
6. The average of 8 numbers is 14. If 2 is subtracted from each given number, what will be the new average?
(a)12(b)10(c)16 (d)18(e)None of these
7. The average of x numbers is 3x. If x – 1 is subtracted from each given number, what will be the new average?
(a)2x + 1(b)(x – 1)3(c)2x – 1(d)Data inadequate(e)None of these
8. The average age of 34 boys in a class is 14 years. If the teacher’s age is included the average age of the boys and the teacher becomes 15 years. What is the teacher’s age?
(a)48 years(b)46 years(c)49 years (d)45 years(e)None of these
9. The average of 40 numbers is 405. If each of the numbers is divided by 15, find the average of new set of numbers.
(a)27(b)28(c)21 (d)26(e)None of these
10. The average of 8 numbers is 21. If each of the numbers is multiplied by 8, find the average of new set of numbers.
(a)168(b)167(c)158(d)161(e)None of these
Daily Vocabulary Wordlist : 3 October 2017
Answer Keys :
1. (1) 2. (5) 3. (1) 4. (3) 5. (3) 6. (1) 7. (1) 8. (3) 9. (1) 10. (1)
