Average of 8 numbers 1300. If average of 5 is 1295, average of remaining 3? MCQ with Answer and Explanation

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Average of 8 numbers 1300. If average of 5 is 1295, average of remaining 3?

A. 1308.33

B. 1305

C. 1307

D. 1310

Answer: Option A

Solution (By JKSSB Mock Tests)

Sum8=10400. Sum5=6475. Remaining=3925. Average≈1308.33.

This question belongs to: Maths Average

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Question #1

Average of 25 numbers 65. If average of 10 is 60, average of remaining 15?

A. 67

B. 68

C. 70

D. 66

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Correct Answer: Option B

Explanation:
Sum25=1625. Sum10=600. Remaining=1025/15≈68.33 approx 68.

This question belongs to: Maths Average

Question #2

What is average of all multiples of 7 from 7 to 70?

A. 39

B. 38.5

C. 35

D. 38

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Correct Answer: Option B

Explanation:
Multiples: 7,14,...,70 (10 numbers). Average=(7+70)/2=38.5.

This question belongs to: Maths Average

Question #3

Average of 8 numbers 1800. If average of 5 is 1795, average of remaining 3?

A. 1808.33

B. 1810

C. 1805

D. 1807

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Correct Answer: Option A

Explanation:
Sum8=14400. Sum5=8975. Remaining=5425. Average≈1808.33.

This question belongs to: Maths Average

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