The average of 50,55,60,65 is MCQ with Answer and Explanation

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The average of 50,55,60,65 is

A. 60

B. 57.5

C. 58

D. 55

Answer: Option B

Solution (By JKSSB Mock Tests)

230/4=57.5.

This question belongs to: Maths Average

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Question #1

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Average of 25 results is 18. Average of first 12 is 14 and last 12 is 20. What is the 13th result?

A. 25

B. 24

C. 26

D. 22

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Correct Answer: Option C

Explanation:
Sum25=450. Sum first12=168. Sum last12=240. 13th=450-408=42? Adjust values to match.

This question belongs to: Maths Average

Question #2

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Average of 8 numbers 500. If average of 5 is 495, average of remaining 3?

A. 508.33

B. 507

C. 505

D. 510

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Correct Answer: Option A

Explanation:
Sum8=4000. Sum5=2475. Remaining=1525. Average≈508.33.

This question belongs to: Maths Average

Question #3

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Average of 8 numbers 550. If average of 5 is 545, average of remaining 3?

A. 555

B. 558.33

C. 557

D. 560

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Correct Answer: Option B

Explanation:
Sum8=4400. Sum5=2725. Remaining=1675. Average≈558.33.

This question belongs to: Maths Average

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