**1.The average of 10 numbers is 7. If each number is multiplied by 12, then the average of the new set of numbers is**

(1) 7 (2) 19 (3) 82 (4) 84 (5) None of These

**2.The average age of 30 students is 9 years. If the age of their teacher is included, it becomes 10 years. The age of the teacher is**

(1) 27 years (2) 31 years (3) 35 years (4) 40 years (5) None of These

**3.The average of 5 numbers is 7. When three new numbers are added, the average of these eight is 8. 5. The average of the three new numbers is**

(1) 11 (2) 7.75 (3) 8.5 (4) 7 (5) None of These

4.Out of four numbers, the average of the first three is 16 and that of the last three is 15. If the last number is 18, the first number is

4.Out of four numbers, the average of the first three is 16 and that of the last three is 15. If the last number is 18, the first number is

(1) 20 (2) 21 (3) 23 (4) 25 (5) None of These

5.The average age of a family of 6 members is 22 years. If the age of the youngest member be 7 years, the average age of the family at the birth of the youngest member was.

5.The average age of a family of 6 members is 22 years. If the age of the youngest member be 7 years, the average age of the family at the birth of the youngest member was.

(1) 15 years (2) 17 years (3) 17.5 years (4) 18 years (5) None of these

**6.The average of four consecutive even numbers is 27. The largest of these numbers is**

(1) 36 (2) 32 (3) 30 (4) 28 (5) None of These

7.The average weight of 9 bananas is increased by 20 g if one of them weighing 120 g is replaced by another. The weight of the new banana is-

7.The average weight of 9 bananas is increased by 20 g if one of them weighing 120 g is replaced by another. The weight of the new banana is-

(1) 180 g (2) 200 g (3) 300 g (4) 360 g (5) None of These

8.The average salary of a group of 28 is Rs 3500/- if salary of one man is added then average increases to 3550/-. What is the salary of this one person?

8.The average salary of a group of 28 is Rs 3500/- if salary of one man is added then average increases to 3550/-. What is the salary of this one person?

(1) Rs 5100 (2) Rs 4950 (3) Rs 5000 (4) Rs 5500 (5) None of these

9.The average age of 30 children in a class is 9 years. If the teacher’s age is added, the average age becomes 10 years. What is the teacher’s age, in years?

9.The average age of 30 children in a class is 9 years. If the teacher’s age is added, the average age becomes 10 years. What is the teacher’s age, in years?

(1) 25 yrs. (2) 30 yrs. (3) 35 yrs. (4) 40 yrs. (5) None of these

**10.The average of four positive integers is 59. The highest integer is 83 and the lowest integer is 29. The difference between the remaining two integers is 28. Which of the following integers is the higher of the remaining two integers?**

(1) 48 (2) 76 (3) 39 (4) Cannot be determined (5) None of these

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