The mean of 50 observations was 36. It was found later that an observation 48 was wrongly taken as 23. The corrected new mean is___________?
A. 35.2
B. 36.1
C. 36.5
D. 39.1
Arithmetic Mcqs · Easy · 3 weeks ago
Question Bank
Arithmetic Mcqs
If the arithmetic mean of seventy five numbers is calculated, it is 35. If each number is increased by 5, then mean of new number is___________?
A. 30
B. 40
C. 70
D. 90
Arithmetic Mcqs · Easy · 3 weeks ago
In the first 10 overs of a cricket game, the run rate was only 3.2. What should be the rate in the remaining 40 overs to reach the target of 282 runs?
A. 6.25
B. 6.5
C. 6.75
D. 7
Arithmetic Mcqs · Easy · 3 weeks ago
The average of runs of a cricket player of 10 innings was 32. How many runs must he make in his next innings so as to increase his average of runs by 4?
A. 2
B. 4
C. 70
D. 76
Arithmetic Mcqs · Easy · 3 weeks ago
The average of 35 students in a class is 16 years. The average age of 21 students is 14. What is the average age of remaining 14 students?
A. 15 years
B. 17 years
C. 18 years
D. 19 years
Arithmetic Mcqs · Easy · 3 weeks ago
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
Arithmetic Mcqs · Easy · 3 weeks ago
A library has an average of 510 visitors on Sunday and 240 on other days. The average number of visitors per day in a month of 30 days beginning with a Sunday is___________?
A. 250
B. 276
C. 280
D. 285
Arithmetic Mcqs · Easy · 3 weeks ago
A family consists of grandparents, parents and three grandchildren. The average age of the grandparents is 67 years, that of the parents is 35 years and that of the grandchildren is 6 years. What is the average age of the family?
A. 28 4/7 years
B. 31 5/7 years
C. 32 1/7 years
D. None of these
Arithmetic Mcqs · Easy · 3 weeks ago
Showing 41 to 48 of 101 results