Average (SSC) (Part-2)

Total Questions: 50

11. In a class of 80 students, 60% participate in games and the rest do not. The average weight of the former group is 5% more than that of the latter. If the average weight of all the students is 51 ½kg, then what is the average weight (in kg) of the former group? [SSC CHSL 2/07/2019 (Afternoon)]

Correct Answer: (d) 52.5
Solution:

12. The average of 27 numbers is zero. Out of them, how many may be greater than zero, at the most? [SSC CGL 13/06/2019 (Evening)]

Correct Answer: (c) 26
Solution:

13. The average marks of 40 students was found to be 68. If the marks of two students were incorrectly entered as 48 and 64 instead of 84 and 46 respectively, then what is the correct average? [SSC CGL 10/06/2019 (Afternoon)]

Correct Answer: (c) 68.45
Solution:

14. Four different positive numbers are written in ascending order. One-third of the average of all the four numbers is 19 less than the greatest of these numbers. If the average of the first three numbers is 12, the greatest number among the given numbers is: [SSC CGL 7/06/2019 (Evening)]

Correct Answer: (c) 24
Solution:

15. The total number of students in section A and B of a class is 110. The number of students in section A is 10 more than that of section B. The average score of the students in B, in a test, is 20% more than that of students in A. If the average score of all the students in the class is 72, then what is the average score of the students in A? [SSC CGL 7/06/2019 (Afternoon)]

Correct Answer: (a) 66
Solution:

16. Three numbers are such that if the average of any two of them is added to the third number, the sums obtained are 168, 174 and 180 respectively. What is the average of the original three numbers? [SSC CGL 4/06/2019 (Evening)]

Correct Answer: (b) 87
Solution:

17. The weights (in kg) of 7 cousins in a family are 54, 62, 65, 70, 60, 59, 55. [SSC CHSL Tier II (18/11/2024)]

Find the median weight.

Correct Answer: (d) 60 kg
Solution:

18. The average of five integers is 48. The average of the first four integers is 50% of the 5th integer. The 5th integer is: [SSC CHSL Tier II (18/11/2024)]

Correct Answer: (b) 80
Solution:

19. The average of 11 results is 60 and that of the first 10 is 59. The 11th result is? [SSC CHSL Tier II (18/11/2024)]

Correct Answer: (b) 70
Solution:

20. The average monthly expenditure of a family was ₹8,600 during the first three months, ₹9,750 during the next four months and ₹9,920 during the last five months of a year. If the total savings during the year was ₹65,300, the average monthly income (in ₹) of the family was: [SSC MTS 30/09/2024 (Morning)]

Correct Answer: (a) 14,975
Solution: