Average of 10 numbers 380. If average of 6 is 375, average of remaining 4? MCQ with Answer and Explanation

Average of 10 numbers 380. If average of 6 is 375, average of remaining 4?
A. 387.5
B. 390
C. 385
D. 386
Answer: Option A
Solution (By JKSSB Mock Tests)
Sum10=3800. Sum6=2250. Remaining=1550. Average=387.5.

This question belongs to: Maths Average
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Practice More Average Questions

Question #1
Average of 15 numbers 2710. If average of 9 is 2705, average of remaining 6?
A. 2715
B. 2720
C. 2718
D. 2717.5

Correct Answer: Option D


Explanation:
Sum15=40650. Sum9=24345. Remaining=16305. Average=2717.5.

This question belongs to: Maths Average
Question #2
Average of 8 numbers 2700. If average of 5 is 2695, average of remaining 3?
A. 2710
B. 2708.33
C. 2707
D. 2705

Correct Answer: Option B


Explanation:
Sum8=21600. Sum5=13475. Remaining=8125. Average≈2708.33.

This question belongs to: Maths Average
Question #3
The average of 5 numbers is 36. If one number is 42, find the average of the remaining 4.
A. 35
B. 33.75
C. 34
D. 34.5

Correct Answer: Option D


Explanation:
Sum=5×36=180. Remaining sum=180-42=138. Avg=138/4=34.5.

This question belongs to: Maths Average