The average of 1440,1920,2400 is MCQ with Answer and Explanation

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The average of 1440,1920,2400 is

A. 1910

B. 1920

C. 1915

D. 1930

Answer: Option B

Solution (By JKSSB Mock Tests)

5760/3=1920.

This question belongs to: Maths Average

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Question #1

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Average of 9 numbers 2490. If average of 6 is 2485, average of remaining 3?

A. 2500

B. 2498

C. 2495

D. 2505

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Correct Answer: Option A

Explanation:
Sum9=22410. Sum6=14910. Remaining=7500. Average=2500.

This question belongs to: Maths Average

Question #2

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

A. 2070

B. 2068

C. 2067.5

D. 2065

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Correct Answer: Option C

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

This question belongs to: Maths Average

Question #3

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Find the average of the first 8 multiples of 4.

A. 16

B. 20

C. 22

D. 18

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Correct Answer: Option D

Explanation:
Multiples: 4,8,12,16,20,24,28,32 sum=144, count=8, avg=18.

This question belongs to: Maths Average

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