Average of 10 numbers 1230. If average of 6 is 1225, average of remaining 4? MCQ with Answer and Explanation

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Average of 10 numbers 1230. If average of 6 is 1225, average of remaining 4?

A. 1240

B. 1237.5

C. 1235

D. 1236

Answer: Option B

Solution (By JKExamLibrary)

Sum10=12300. Sum6=7350. Remaining=4950. Average=1237.5.

This question belongs to: Maths Average

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Practice More Average Questions

Question #1 Report Error

If average of 12 numbers is 35 and average of first 8 is 32, average of last 4?

A. 41

B. 42

C. 40

D. 38

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Correct Answer: Option A

Explanation:
Sum12=420. Sum8=256. Last4=164. Average=41.

This question belongs to: Maths Average

Question #2 Report Error

Average of first 12 natural numbers is

A. 6

B. 7

C. 5.5

D. 6.5

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Correct Answer: Option D

Explanation:
13/2=6.5.

This question belongs to: Maths Average

Question #3 Report Error

The average age of 5 persons is 25 years. If one person aged 30 leaves, what is the average of the remaining?

A. 23.5

B. 24

C. 23.75

D. 24.5

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Correct Answer: Option C

Explanation:
Sum=5×25=125. New sum=125-30=95. Avg=95/4=23.75.

This question belongs to: Maths Average

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