**Q.1. In a group of 3 numbers, the 1st number is double of 2nd and half of 3rd. if the average of the three numbers is 56, then find the difference between the third and first number.**

(a) 48

(b) 42

(c) 45

(d) 40

a

**Q.2.The average of 10 numbers is 7. If each number is multiplied by 12, then the average of the new set of numbers will be**

(a) 78

(b) 72

(c) 85

(d) 84

d

**Q.3 The average salary of 15 persons is Rs. 5500. If the salary of one person is added, the average increases to 5700. What is the salary of this one person?**

(a) Rs. 8700

(b) Rs. 9500

(c) Rs. 7800

(d) Rs. 8500

a

**Q.4.13 chairs and 5 tables were bought for Rs. 8280. If the cost of a table is Rs. 1227, what is the average of cost of a chair?**

(a) Rs. 165

(b) Rs. 195

(c) Rs. 185

(d) Rs. 245

a

**Q.5.The average weight of 24 students is 35 kg. If the weight of teacher is added the average increased by 400 gms. What is the weight of the teacher?**

(a) 45

(b) 49

(c) 54

(d) 53

a

**Q.6. The average weight of 8 people increases by 1.5 kg, if a man whose weight is 65kgs is replaced by another man. What is the weight of new man?**

(a) 77

(b) 73

(c) 75

(d) 74

a

**Q.7.The average age of 12 players of a team is 25 years. If the captain’s age is included, the average age increases by 1 year. The age of the captain is**

(a) 25 yrs

(b) 38 yrs

(c) 36 yrs

(d) 46 yrs

b

**Q.8. The average age of 3 friends is 23. If the age of 4th friend is added, their average age remains 23. What is the age of the 4th friend?**

(a) 22 yrs

(b) 23 yrs

(c) 24 yrs

(d) 25 yrs

b

**Q.9. The average of 6 observations is 45.5. If one new observation is added to the previous observations, then the new average becomes 47. The observation is:**

(a) 58

(b) 56

(c) 50

(d) 46

b

**Q.10. In a committee the average age of 8 people increases by 2 yrs when two people whose ages were 35 years and 45 years are replaced by two women. Find the average age of the two women**

(a) 48 yrs

(b) 42 yrs

(c) 44 yrs

(d) 43 yrs

a