The average age of 6 men is increased by 3 years when two of them whose ages are 25 and 27 years are replaced by two men. The average age of two newcomers is:
A. 25 years
B. 32 years
C. 30 years
D. 35 years
Average
There were 40 members in a certain hostel. If 10 members are more admitted the expenses of the mess was increased by Rs. 50 per month while the average expenditure per head diminished by Rs.3. The original monthly expenses are:
A. Rs. 620
B. Rs.800
C. Rs. 700
D. Rs. 850
The average income of a group of 3 men V W and X is 54 rupees. Another man Y joins their group and the average now becomes 50 rupees. If another man Z Whose income is 5 more than Y replaces V and average of W X Y and Z becomes 49. What is the income of V?
A. 47
B. 50
C. 54
D. 53
The average cost of 100 eggs is 2 rupees. It is lowered to 1.5 on buying an additional 100 eggs. What is the difference of cost of additional 100 eggs and previously purchased 100 eggs?
A. Rs. 40
B. Rs. 50
C. Rs. 150
D. Rs. 100
In a survey the average age was found to be 40 years. After correction the age of 100 people is increased from 35 to 50 years each. The new average is 50 years. The total number of people surveyed are:
A. 50
B. 120
C. 150
D. 200
The average salary of employees in a factory is Rs. 2200. All employees are divided in two grades A and B having an average of Rs. 2450 and Rs. 1950 respectively. If grade A has 10 employees then how many employees have grade B:
A. 12
B. 16
C. 20
D. none
A team won 5 matches with the average margin of 32 runs. In the next two matches, they are defeated by an average of 10 runs. The average margin for all the matches will be :
A. 18
B. 20
C. 23.7
D. 25
The average temperature for the first 4 days i.e. Monday Thursday is 37.5C?. While for the last 4 days i.e. Thursday to Sunday is 30C?. If the temperature on Thursday is 30?C then the average for the whole week will be:
A. 34.3
B. 35
C. 36
D. 37.4
The average earning of a firm for the first 6 months is Rs. 2100 per month. While for the last two quarters is Rs. 6300 per quarter. The net average income per month will be:
A. 1750
B. 3900
C. 25200
D. 2100
The average of goals scored for a match before final is 5. After the final this average is decreased by 0.2. If 10 matches are played throughout the tournament then the goals scored in final are:
A. 2
B. 3
C. 4
D. 5