Average SSC GD Questions

SSC GD-Elementary Mathematics

Average MCQ Questions


7.
The average of eight consecutive even numbers is 65. If the next four consecutive even numbers are included, then what is the average of all the numbers?
SSC GD 2021-02.12.2021-2
A.
68
B.
69
C.
67
D.
70
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ANSWER :
B. 69
8.
Out of two numbers, the first number is three-fourth of the second number. If the average of the reciprocal of the two numbers is \(\frac{7}{48} \), then the first number is:
SSC GD 2021-02.12.2021-3
A.
8
B.
4
C.
10
D.
6
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ANSWER :
D. 6
9.
The average of 4 numbers is 60 and the 1st number is \( \frac{1}{3} \) of the sum of the remaining three numbers. What is the first number?
SSC GD 2021-02.12.2021-3
A.
120
B.
60
C.
30
D.
40
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ANSWER :
B. 60
10.
The average score of nineteen students in a computer examination is 74. It was detected that while working out the average by mistake the marks secured by one student was recorded as 65 in place of 56. What is the correct average score (correct to one decimal place)?
SSC GD 2021-03.12.2021-2
A.
73.5
B.
73.7
C.
74
D.
75.9
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ANSWER :
A. 73.5
11.
The average weight of 5 persons increases by 2.8 kg when a new person comes in place of one of them weighing 38 kg. The weight of the new person is:
SSC GD 2021-03.12.2021-2
A.
48 kg
B.
52 kg
C.
44 kg
D.
50 kg
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ANSWER :
B. 52 kg
12.
What is the average of the prime numbers lying between 25 and 45?
SSC GD 2021-03.12.2021-1
A.
36 \( \frac{1}{5} \)
B.
33 \( \frac{8}{9} \)
C.
34 \( \frac{1}{11} \)
D.
36
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ANSWER :
A. 36 \( \frac{1}{5} \)