Averages Problems for SSC CGL

6.

In the first 10 overs of a cricket game, the run rate was only 8.2. What should be the run rate in the remaining 40 overs to reach the target of 106 runs.?

   A.) 0.7
   B.) 0.9
   C.) 0.5
   D.) 0.6

Answer: Option 'D'

"Required Run rate = ( 106 - ( 8.2 x 10 ) )/ (40) = ( 24) /(40) = 0.6 "

7.

Total Marks obtained by a class is 4345 and the average score of the class is 55. Find the Total students in the class?

   A.) 80
   B.) 79
   C.) 78
   D.) 77

Answer: Option 'B'

Use the below formula to find the Total, when Average and Total No. of Students is provided Total no of students = Total Marks / Average Marks Total No. of students = ( 4345 / 55) = 79

8.

A man's daily expenditure isRs. 11 during April, Rs. 15 during March and Rs. 17 during Feb. Find the average daily expenditure for the three months (it is a leap year)? 

   A.) Rs. 14.20
   B.) Rs. 14.30
   C.) Rs. 14.4
   D.) Rs. 14.31

Answer: Option 'B'

Rs. 14.30

9.

The average of 28 numbers is zero. Of them, at the most how many may be greater than zero? 

   A.) 27
   B.) 28
   C.) 29
   D.) 26

Answer: Option 'A'

Average of 28 numbers is = 0
Therefore sum of all 28 numbers = 0
It is quite possible that 27 of these numbers may be positive and if their sum is "a" then 28th number is "(-a)"

10.

Find the average of the first 56 natural numbers

   A.) 28.5
   B.) 28
   C.) 27.5
   D.) 29

Answer: Option 'A'

Solution is
Average of the first n natural numbers = (n + 1) / 2
Average of the first 56 natural numbers = (56 + 1) / 2
= 57 / 2
= 28.5

Averages Problems for SSC CGL Download Pdf