Top 10 Questions (Averages) for SSC CGL and CHSL

Top 10 Questions Arithmetic Ability for SSC CGL and CHSL

Top 10 Questions (Averages) for SSC CGL and CHSL

Answers are in bold

1)

A batsman, in his 12th innings, makes a score of 63 runs and thereby increases his average score by 2. The average of his score after 12th innings is

A) 41
B) 42
C) 34
D) 35

2)

The average of two numbers A and B is 20, that of B and C is 19 and of C and A it is 21. What is the value of A?

A) 24
B) 22
C) 20
D) 18

3)

The average of 30 numbers is 12. Out of them average of first 20 is 11 and next 9 is 10. The last number will be :

A) 60
B) 45
C) 40
D) 50

4)

If the length of a rectangular field is increased by 5% and breadth decreased by 10%, then what will be the difference in its area ? The average of present ages of a 4 member family is 36 years. The present age of youngest member is 12 years, then what was the average age of this family at the birth time of the youngest member?

A) 48 years
B) 40 years
C) 32 years
D) 24 years

5)

The average of 8 numbers is 20. If sum of first two numbers is 31, the average of next three numbers is and seventh and eighth numbers are more than 4 and 7 from the sixth number, then eight number will be :

A) 20
B) 25
C) 21.6
D) 25.3

6)

The average of bowling of a cricket player was 12.4. When he takes 5 wickets in last match after giving 26 runs then his average of bowling is bettered by 0.2. How many wickets were taken by him before the last match ?

A) 124
B) 150
C) 175
D) 200

7)

A train covers 3584 km distance in 2 days 8 hours. If this train covers 1440 km in first day and 1608 km in second day then average speed for rest journey is how many more or less than the average speed of whole journey?

A) 3 km/hr. more
B) 3 km/hr. less
C) 4 km/hr. more
D) 5 km/hr. less

8)

Out of seven given numbers, the average of the first four numbers is 4 and that of the last four numbers is also 4. If the average of all the seven numbers is 3, the fourth number is

A) 3
B) 4
C) 7
D) 11

9)

The average of 100 numbers is 44. The average of these 100 numbers and 4 other new numbers is 50. The average of the four new numbers will be

A) 800
B) 200
C) 176
D) 24

10)

The average of 6 observations is 45.5. If one new observation is added to the previous observations then new average becomes 47. The new observation is

A) 58
B) 56
C) 50
D) 46