The average of five consecutive numbers is x. If the next two numbers are includ
The average of five consecutive numbers is x. If the next two numbers are included, how shall the average vary?
The average of 2, 7, 6 and x is 5 and the average of 18, 1, 6, x and y is 10. Wh
The average of 2, 7, 6 and x is 5 and the average of 18, 1, 6, x and y is 10. What is…
In a certain factory there are five workers A, B, C, D and E. A can complete a w
In a certain factory there are five workers A, B, C, D and E. A can complete a work in 4 minutes, B in…
The average of x 1 , x 2 , x 3 and x 4 is 16. Half the sum of x 2 , x 3 , x 4 is
The average of x 1 , x 2 , x 3 and x 4 is 16. Half the sum of x 2 , x…
The average expenditure of a man for the first five months of a year is Rs. 5000
The average expenditure of a man for the first five months of a year is Rs. 5000 and for the next seven months it…
Company C sells a line of 25 products with an average retail price of Rs. 1200.
Company C sells a line of 25 products with an average retail price of Rs. 1200. If none of these products sells for less…
The average weight of 16 boys in a class is 50.25 kgs and that of the remaining
The average weight of 16 boys in a class is 50.25 kgs and that of the remaining 8 boys is 45.15 kgs. Find the…
If the mean of 5 observations x, x + 2, x + 4, x + 6 and x + 8 is 11, then the m
If the mean of 5 observations x, x + 2, x + 4, x + 6 and x + 8 is 11, then the…
When the average age of a couple and their son was 42 years, the son married and
When the average age of a couple and their son was 42 years, the son married and got a child after one year. When…
The batting average for 40 innings of a cricket player is 50 runs. His highest s
The batting average for 40 innings of a cricket player is 50 runs. His highest score exceeds his lowest score by 172 runs. If…
In a group of 120 people, one-fifth are men, one-fourth are women and the rest c
In a group of 120 people, one-fifth are men, one-fourth are women and the rest children. The average age of women is five-sixth of…
Four years ago, the average age of A and B was 18 years. At present the average
Four years ago, the average age of A and B was 18 years. At present the average age of A, B, and C is…