The average of 300,400,500 is MCQ with Answer and Explanation

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The average of 300,400,500 is

A. 390

B. 400

C. 410

D. 395

Answer: Option B

Solution (By JKSSB Mock Tests)

1200/3=400.

This question belongs to: Maths Average

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Question #1

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Average of 15,30,45,60,75 is

A. 42

B. 50

C. 45

D. 40

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Correct Answer: Option C

Explanation:
225/5=45.

This question belongs to: Maths Average

Question #2

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Average of 10 numbers is 40. If each number is multiplied by 2, what is the new average?

A. 20

B. 60

C. 40

D. 80

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Correct Answer: Option D

Explanation:
If each number is multiplied by a constant, average is also multiplied by the same. New average = 40 × 2 = 80.

This question belongs to: Maths Average

Question #3

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Average of 15 numbers 2060. If average of 9 is 2055, average of remaining 6?

A. 2068

B. 2067.5

C. 2065

D. 2070

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Correct Answer: Option B

Explanation:
Sum15=30900. Sum9=18495. Remaining=12405. Average=2067.5.

This question belongs to: Maths Average

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