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Average Quiz : 04.07.2018

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Question 1

Average of two numbers is 8 and average of other three numbers is 3 then the average of the five numbers is:

Question 2

Numbers of boys and girls are 'x' and 'y' respectively; ages of one girl and one boy are 'a' years and 'b' years respectively. The average age (in years) of all the boys and girls collectively is-

Question 3

A motor cycle gives an average of 45 km per litre. If the cost of petrol is Rs. 20/litre. The amount required to complete a journey of 540 km is, (in Rupees)

Question 4

The average of 4 consecutive numbers is 14.5. If the number one less than the least and one greater than the highest of these 4 numbers are also taken, what will be the new average?

Question 5

The average of n numbers is Then the value of  is equal to

Question 6

The average age of three children of Mr. Stark; Robb, Brandon and Rickon, is 19 years while the average age of Brandon and Rickon is 17 years. Brandon is 6 years younger than Robb, find the age of Rickon.

Question 7

While taking average of 20 numbers, 69 was taken as 96. What is the difference between actual and obtained average?

Question 8

5 members of a team are weighed consecutively and their average weight calculated after each member is weighed. If the average weight increases by two kg each time, how much heavier is the last player than the first one?

Question 9

Among three numbers, second is twice the first and also thrice the third. If the average of the three numbers is 33, then the largest number is

Question 10

The average of 100 items was found to be 30. If at the time of calculation, two items were wrongly taken as 32 and 12 instead of 23 and 11 then find out the correct average.
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