Average SSC GD Questions

SSC GD-Elementary Mathematics

Average MCQ Questions


1.
The average weight of 20 students in a group is 54 kg. If 12 students of average weight 52 kg join the group and 7 students of average weight 56 kg leave the group, then what will be the average weight (in kg) of the remaining students in the group?
SSC GD 2021-30.11.2021-1
A.
53.84
B.
51.96
C.
52.48
D.
54.24
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ANSWER :
C. 52.48
2.
The average weight of students in a class was 58.5 kg. When 8 more students with average weight of 64.5 kg joined the class, then the average weight of all the students increased by 0.96 kg. What was the number of students, initially, in the class?
SSC GD 2021-30.11.2021-1
A.
40
B.
32
C.
37
D.
42
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ANSWER :
D. 42
3.
The average of five consecutive even numbers is 36. If the next five consecutive odd numbers are included, then what is the average of all the numbers?
SSC GD 2021-30.11.2021-2
A.
39
B.
41.25
C.
40.5
D.
37.75
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ANSWER :
C. 40.5
4.
The average weight of 24 boys is 7 kg more than the average weight of 28 girls. If the total weight of 24 boys is 1080 kg, then the total weight of 28 girls is:
SSC GD 2021-30.11.2021-2
A.
1074 kg
B.
1064 kg
C.
1054 kg
D.
1046 kg
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ANSWER :
B. 1064 kg
5.
The average age of 10 men is increased by 3 years. when three of them whose ages are 15 years. 16 years and 17 years are replaced by three new men. Find the average age of the three new men.
SSC GD 2021-02.12.2021-1
A.
21 years
B.
26 years
C.
24 years
D.
19 years
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ANSWER :
B. 26 years
6.
The average of five consecutive odd natural numbers is 27. The product of the first and the fifth number is:
SSC GD 2021-02.12.2021-1
A.
713
B.
715
C.
717
D.
621
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ANSWER :
A. 713