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free Online Test Average Questions and Answers Quiz 3

Description: Free Online Test questions and answers on Average with explanation for various competitive exams,entrance test. Solved examples with detailed answer test 3

Exercise

"Life is like riding a bicycle. To keep your balance you must keep moving."
- Albert Einstein
1 . The average age of boys in a class is 16 years and that of the girls is 15 years. The average age for the whole class is
A.  15 Years B.    15.5 Years
C.  16 Years D.    cannot be computed
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2 . The average age of 36 students in a group is 14 years. When teacher’s age is included to it, the average increases by one, what is the teacher's age in years?
A.  31 B.    36
C.  51 D.    55
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3 . The average of five numbers is 27. If one number is excluded, the average becomes 25. The excluded number is
A.  25 B.    27
C.  30 D.    35
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4 . The batting average for 40 innings of a cricket player is 50 runs. His highest score exceeds his lowest score by 172 runs. If these two innings are excluded, the average of the remaining 38 innings is 48 runs. The highest score of the player is
A.  165 runs B.    175 runs
C.  172 runs D.    174 runs
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5 . The average score of a cricketer for ten matches is 38.9 runs. If the average for the first six matches are 42. Then find the average for the last four matches?
A.  33.25 B.    33.5
C.  34.25 D.    35
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6 . The average of six numbers is X and the average of three of these is Y. If the average of the remaining three is z, then
A.  x = y + z B.    2x= y + z
C.  x = 2y + 2z D.    Data inadequate
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7 . A motorist travel to a place 150 km away at an average speed of 50 km/hr and returns at 30 km/hr. His average speed for the whole journey in km/hr is
A.  30 B.    37
C.  37.5 D.    40
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8 . The average age of a husband and his wife was 23 years at the time of their marriage. After five years they have a one year old child. The average age of the family now is
A.  19 years B.    23 years
C.  28.5 years D.    29.3 years
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9 . In an examination, a pupil's average marks were 63 per paper. If he had obtained 20 more marks for his Geography paper and 2 more marks for his history paper, his average per paper would have been 65. How many papers were there in the examination?
A.  8 B.    9
C.  10 D.    11
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10 . 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
A.  20 B.    21
C.  22 D.    23
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