A. 8
B. 9
C. 10
D. 11
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0
The average salary of all the workers in a workshop is Rs. 8000. The average salary of 7 technicians is Rs. 12000 and the average salary of the rest is Rs. 6000. The total number of workers in the workshop is__________________?
0
The arithmetic mean of the scores of a group of students in a test was 52. The brightest 20% of them secured a mean score of 80 and the dullest 25% a mean score of 31. The mean score of remaining 55% is___________?
A. 20
B. 21
C. 22
D. 23
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0
The average age of a husband, wife and their child 3 years ago was 27 years and that of wife and the child 5 years ago was 20 years. The present age of the husband is___________?
A. 45
B. 50
C. 51.4 approx.
D. 54.6 approx.
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7
A cricketer has a certain average for 10 innings. In the eleventh inning, he scored 108 runs, there by increasing his average by 6 runs. His new average is_____________?
A. 35 years
B. 30 years
C. 40 years
D. None of these
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0
The captain of a cricket team of 11 members is 26 years old and the wicket keeper is 3 years older. If the ages of these two are excluded, the average age of the remaining players is one year less than the average age of the whole team. What is the average of the team?
A. 48 runs
B. 52 runs
C. 55 runs
D. 60 runs
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0
The average monthly salary of 20 employees in an organisation is Rs. 1500. If the manager’s salary is added, then the average salary increases by Rs. 100. What is the manager’s monthly salary?
A. 23 years
B. 24 years
C. 25 years
D. None of these
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0
The average monthly income of P and Q is Rs. 5050. The average monthly income of Q and R is 6250 and the average monthly income of P and R is Rs. 5200. The monthly income of P is____________?
A. Rs. 2000
B. Rs. 2400
C. Rs. 3600
D. Rs. 4800
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0
The average weight of A, B and C is 45 kg. If the average weight of A and B be 40 kg and that of B and C be 43 kg, then the weight of B is___________?
A. Rs. 3500
B. Rs. 4000
C. Rs. 4050
D. Rs. 5000
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0
The average age of 15 students of a class is 15 years. Out of these, the average age of 5 students is 14 years and that of the other 9 students is 16 years. The age of the 15th student is____________?
A. 17 kg
B. 20 kg
C. 26 kg
D. 31 kg
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