Average of 8 numbers is 31 seven of them are 15 45 17 19 33 48 65. What is the eighth number?
A. 15
B. 6
C. 23
D. 34
Average
Find the average of 8 13 25 43 and 11
A. 20
B. 32
C. 27
D. 19
The average age of a class is 12 years and total age is 300 years. If a student of age 15 years is now admitted then find the average of the new class.
A. 12.11 years
B. 11.12 years
C. 13.12 years
D. 10.13 years
Ali drove at 50 km per hour for first three hours of his trip. Then due to heavy traffic he drove at 40 km per hour for two hours. Find his agerage speed for the trip.
A. 48 km per hr
B. 45 km per hr
C. 46 km per hr
D. 43 km per hr
Sum of weights of a class of 20 is 290 kg. Another student of weight 25 kg is also enrolled. Find the new average of the class.
A. 15 kg
B. 17 kg
C. 21 kg
D. 14 kg
Find the temperature on Sunday if sum of temperatures of other 6 days is 145 C? and average of the week is 25 C?
A. 29C
B. 30C
C. 28C
D. 31C
In the class of 100 students at KIPS average marks of the students in the mathematics tests were 80. How many got exactly 80 marks in the test?
A. 50
B. more than 50
C. less than 50
D. It cannot be determined
The average age in a city of 10000 is 40 years. The average of half of them is 50 years. The average of remaining ones is.
A. 15
B. 25
C. 30
D. 35
During a certain operation B persons are successfully recovered every year. If A persons are treated during the last 5 years what will be the average death rate per year.
A. B/5
B. A-5B
C. (A-b)/5
D. (A-5B)/5
A shopkeeper purchases 5 cartoons in 105 rupees and 8 cartoons in 155 rupees. If a cartoon contains 5 items then average price per item is:
A. 4
B. 15.75
C. 20
D. 27.15