Average of 20 numbers 180. If average of 12 is 175, average of remaining 8? MCQ with Answer and Explanation

Question
Average of 20 numbers 180. If average of 12 is 175, average of remaining 8?
A. 188
B. 187.5
C. 190
D. 185
Answer: Option B
Solution (By JKExamLibrary)
Sum20=3600. Sum12=2100. Remaining=1500. Average=187.5.
This question belongs to: Maths Average

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Practice More Average Questions

Question #1
Average of 4,8,12,...,36 is
A. 22
B. 18
C. 24
D. 20
Discuss

Correct Answer: Option D

Explanation:
9 numbers. Average=(4+36)/2=20.
This question belongs to: Maths Average
Question #2
Average of 5 numbers 48. If average of 2 is 40, average of remaining 3?
A. 55
B. 52
C. 53.33
D. 50
Discuss

Correct Answer: Option C

Explanation:
Sum5=240. Sum2=80. Remaining=160. Average≈53.33.
This question belongs to: Maths Average
Question #3
The average weight of 10 students is 45 kg. If a new student joins, the average becomes 46 kg. What is the weight of the new student?
A. 57 kg
B. 54 kg
C. 55 kg
D. 56 kg
Discuss

Correct Answer: Option D

Explanation:
Total weight of 10 = 450. Total of 11 = 11×46=506. New student's weight = 506-450=56.
This question belongs to: Maths Average
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