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Quantitative Aptitude Test

1. The total of the ages of a class of 75 girls is 1050 years, the average age of 25 of them is 12 years and that of another 25 is 16 years. Find the average of the remaining girls?
a) 12 years
b) 13 years
c) 14 years
d) 15 years
e) None of these

2. The average monthly income of a family of four earning members was Rs. 15,130. One of the daughters in the family got married and left home. So the average monthly income of the family came down to Rs 14,660. What is the monthly income of the married daughter?
a) Rs. 15,350
b) Rs. 12,000
c) Rs. 16,540
d) Cannot be determined
e) None of these

3. The average age of 30 students of a class is 14 years. When the age of the class teacher is included, the average increases 1 year. Find the age of class teacher?
a) 25 years
b) 30 years
c) 32 years
d) 36 years
e) None of these

4. In the first 10 overs of a cricket game, the run rate was only 3.2. What should be the run rate in the remaining 40 overs to reach the target of 282 runs?
a) 6.25
b) 5.5
c) 5
d) 4.75
e) None of these

5. The average of five numbers is 27. If one number is excluded, the average becomes 25. What is the excluded number?
a) 40
b) 37
c) 35
d) 30
e) 28.5

6. The average expenditure of 9 friends out of 10 is Rs.20. The tenth friend expenditure is Rs.45 more than the average expenditure of all 10 friends. Find the total expenditure of all 10 friends?
a) Rs. 245
b) Rs. 250
c) Rs. 255
d) Rs. 260
e) Cannot be determined

7. The average salary of all the 100 workers in a workshop is Rs. 24,000. The average salary of technicians is Rs. 40,000 and the average salary of the rest is Rs. 20,000. How many technicians are there in the workshop?
a) 10
b) 15
c) 18
d) 20
e) 26

8. Average weight of 20 people increased by 1.5 kg when one person of 50 kg is replaced by a new man. Then find the weight of the new man?
a) 51 kg
b) 60 kg
c) 70 kg
d) 75 kg
e) 80 kg

9. The average weight of A and B is 50 kg; B and C is 70 kg and C and A is 60 kg. Then find the weight of B?
a) 40 kg
b) 55 kg
c) 58 kg
d) 60 kg
e) Cannot be determined

10. Find the average of 1, 4, 9, 16, ……… 625.
a) 313
b) 221
c) 216
d) 208
e) None of these

11. The average of ten numbers is 7. If each number is multiplied by 12, then the average of the new set of numbers is:
a) 7
b) 19
c) 82
d) 84
e) 96

12. Madhu has twice as much money as Suresh and Suresh has 50% more money than what Pavan has. If the average money with them is Rs 110, then Madhu has:
a) Rs. 55
b) Rs. 60
c) Rs. 90
d) Rs. 180
e) Rs. 220

13. The average marks of 30 students in a class are 60. But a student marks is wrongly noted as 15 instead of 90. Find correct average marks?
a) 57.5
b) 58.5
c) 62.5
d) 63.5
e) 65

14. If a, b, c, d, e are five consecutive odd numbers, their average is: 
a) 5(a+d)
b) 5(a+b+c+d+e)
c) abcde
d) a+4
e) None of these

Quantitative Aptitude Test

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