Averages in Aptitude MCQ Quiz (Multiple Choice Questions And Answers)
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91. The average of women and child workers in a factory was 15%yr. The average age of all the 16 children was 8yr and average age of women workers was 22 yrs if ten women workers were married then the number of unmarried women workers were
- 12
- 18
- 6
- 3
92. The mean marks of 30 students in a class is 58.5. Later on it was found that 75 was wrongly recorded as 57. Find the correct them
- 60
- 59
- 59.1
- 58
93. A person travels from x to y at a speed of 40Km/h and returns by increasing his speed 50%. What is his average speed for both the trips?
- 50 km/h
- 45 km/h
- 55 km/h
- 48km/h
94. The average of 18 observations was calculated and it was 124. Later on it was discovered that two observations 46 and 82 were incorrect. The correct values are 64 and 28. The correct average of 18 observations is
- 144
- 145
- 125
- 122
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