There are 45 persons staying at a hostel. The average expenses of a person for a day are rupees 20. The total expenses for all the persons for a week are:
A. 295
B. 900
C. 9000
D. 6300
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A family of 6 has an average of 25 and another of 9 has an average of 41. The sum of the ages of the family members of both will be:
A. 165
B. 375
C. 455
D. none
The average of crimes per week in a city is A. Find the number of crimes in 4 weeks.
A. A/4
B. 4A/7
C. 4A
D. 7A/4
A family with six members has an average age of 25 while a family of 9 has an average age of 35. The combined average of both families will be:
A. 30
B. 34.93
C. 39
D. none
If X persons are admitted to a hospital during the last five years and Y persons are recovered out of them during this period then find the average number of persons admitted in one year:
A. x/y
B. (x-y)/5
C. x/5
D. (x+y)/5
In the above question what is the average of un-recovered persons per year:
A. (x-y)/5
B. x-y
C. y/x
D. (x+y)/5
Ahmad bought color pencils with price 3.45 16.75 9.84 and 8.16. Find the average amount spent on a pencil.
A. 7.8
B. 8.2
C. 9.55
D. 18.2
The sum of the ages of Sadia and her mother is 63 years. Four years earlier her age was 1/4 of her mother’s age. What is the present age of her mother?
A. 48
B. 42
C. 46
D. 44
Xs, age is twice the average age of A, B and X. As age is one half the average age of A, B and X. If B is 5 years old what is the average age of A, B, and X?
A. 10
B. 9
C. 8
D. 11
The difference between the ages of two brothers is 2 and the difference of the squares of their ages is 16. The age of smaller one is?
A. 4
B. 5
C. 2
D. 3