Average MCQs

Maths

Average MCQs

Practice Average MCQs with answers and detailed explanations. Learn basic average concepts, average age, marks, salary, speed, combined average, weighted average and advanced aptitude questions designed for SSC, Railway, Banking, UPSC, JKSSB, Police, Teaching and other competitive exams.

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Total Questions

Practice Questions

Page 27 of 49
Question #521
Average of 30 numbers 55. If average of 20 is 50, average of remaining 10?
A. 65
B. 62
C. 70
D. 60
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Correct Answer: Option A

Explanation:
Sum30=1650. Sum20=1000. Remaining=650. Average=65.
This question belongs to: Maths Average
Question #522
The average of 36,48,60 is
A. 48
B. 52
C. 45
D. 50
Discuss
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Correct Answer: Option A

Explanation:
144/3=48.
This question belongs to: Maths Average
Question #523
Average of 7 numbers 42. If average of 4 is 38, average of remaining 3?
A. 46
B. 50
C. 45
D. 48
Discuss
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Correct Answer: Option D

Explanation:
Sum7=294. Sum4=152. Remaining=142. Average≈47.33 approx 48.
This question belongs to: Maths Average
Question #524
Average of 15,30,45,60,75 is
A. 50
B. 45
C. 40
D. 42
Discuss
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Correct Answer: Option B

Explanation:
225/5=45.
This question belongs to: Maths Average
Question #525
Average of 20 numbers 60. If each is halved, new average?
A. 60
B. 15
C. 120
D. 30
Discuss
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Correct Answer: Option D

Explanation:
30.
This question belongs to: Maths Average
Question #526
The average of 44,55,66 is
A. 50
B. 55
C. 60
D. 58
Discuss
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Correct Answer: Option B

Explanation:
165/3=55.
This question belongs to: Maths Average
Question #527
Average of 12 numbers 38. If average of 9 is 35, average of remaining 3?
A. 48
B. 45
C. 47
D. 50
Discuss
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Correct Answer: Option C

Explanation:
Sum12=456. Sum9=315. Remaining=141. Average=47.
This question belongs to: Maths Average
Question #528
Average of 1 to 25 is
A. 13
B. 12.5
C. 12
D. 13.5
Discuss
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Correct Answer: Option A

Explanation:
(25+1)/2=13.
This question belongs to: Maths Average
Question #529
Average of 25,35,45,55,65 is
A. 40
B. 42
C. 50
D. 45
Discuss
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Correct Answer: Option D

Explanation:
225/5=45.
This question belongs to: Maths Average
Question #530
Average of 8 numbers 55. If average of 5 is 50, average of remaining 3?
A. 65
B. 62
C. 60
D. 63.33
Discuss
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Correct Answer: Option D

Explanation:
Sum8=440. Sum5=250. Remaining=190. Average≈63.33.
This question belongs to: Maths Average
Question #531
The average of 28,42,56 is
A. 45
B. 38
C. 42
D. 40
Discuss
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Correct Answer: Option C

Explanation:
126/3=42.
This question belongs to: Maths Average
Question #532
Average of 40 numbers 65. If 15 numbers average 70, average of remaining 25?
A. 62
B. 60
C. 64
D. 63
Discuss
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Correct Answer: Option A

Explanation:
Total=2600. 15=1050. Remaining=1550/25=62.
This question belongs to: Maths Average
Question #533
Average of 9 numbers 40. If average of 6 is 38, average of remaining 3?
A. 42
B. 46
C. 45
D. 44
Discuss
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Correct Answer: Option D

Explanation:
Sum9=360. Sum6=228. Remaining=132. Average=44.
This question belongs to: Maths Average
Question #534
The average of 75,85,95 is
A. 82
B. 90
C. 85
D. 80
Discuss
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Correct Answer: Option C

Explanation:
255/3=85.
This question belongs to: Maths Average
Question #535
Average of 16 numbers 45. If average of 10 is 40, average of remaining 6?
A. 50
B. 55
C. 52
D. 53.33
Discuss
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Correct Answer: Option D

Explanation:
Sum16=720. Sum10=400. Remaining=320. Average≈53.33.
This question belongs to: Maths Average
Question #536
Average of 25 numbers 70. If average of 15 is 75, average of remaining 10?
A. 62.5
B. 60
C. 63
D. 65
Discuss
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Correct Answer: Option A

Explanation:
Total=1750. Sum15=1125. Remaining=625/10=62.5.
This question belongs to: Maths Average
Question #537
The average of 32,48,64 is
A. 46
B. 48
C. 50
D. 45
Discuss
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Correct Answer: Option B

Explanation:
144/3=48.
This question belongs to: Maths Average
Question #538
Average of 7 numbers 50. If average of 4 is 45, average of remaining 3?
A. 55
B. 57.67
C. 58
D. 60
Discuss
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Correct Answer: Option B

Explanation:
Sum7=350. Sum4=180. Remaining=170. Average≈56.67 approx 57.
This question belongs to: Maths Average
Question #539
Average of 20,40,60,80,100,120 is
A. 70
B. 60
C. 75
D. 80
Discuss
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Correct Answer: Option A

Explanation:
420/6=70.
This question belongs to: Maths Average
Question #540
Average of 18 numbers 60. If 6 numbers average 70, average of remaining 12?
A. 50
B. 56
C. 55
D. 58
Discuss
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Correct Answer: Option C

Explanation:
Total=1080. 6=420. Remaining=660/12=55.
This question belongs to: Maths Average

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