Average of 10 numbers 1280. If average of 6 is 1275, average of remaining 4? MCQ with Answer and Explanation

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Average of 10 numbers 1280. If average of 6 is 1275, average of remaining 4?

A. 1285

B. 1290

C. 1287.5

D. 1286

Answer: Option C

Solution (By JKExamLibrary)

Sum10=12800. Sum6=7650. Remaining=5150. Average=1287.5.

This question belongs to: Maths Average

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Practice More Average Questions

Question #1 Report Error

Average of 10,25,40,55 is

A. 30

B. 32.5

C. 33

D. 35

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Correct Answer: Option B

Explanation:
130/4=32.5.

This question belongs to: Maths Average

Question #2 Report Error

Average of 15 numbers 1260. If average of 9 is 1255, average of remaining 6?

A. 1270

B. 1268

C. 1265

D. 1267.5

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Correct Answer: Option D

Explanation:
Sum15=18900. Sum9=11295. Remaining=7605. Average=1267.5.

This question belongs to: Maths Average

Question #3 Report Error

Average of 8 numbers 2300. If average of 5 is 2295, average of remaining 3?

A. 2307

B. 2305

C. 2308.33

D. 2310

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Correct Answer: Option C

Explanation:
Sum8=18400. Sum5=11475. Remaining=6925. Average≈2308.33.

This question belongs to: Maths Average

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