Average of 9 numbers 240. If average of 6 is 235, average of remaining 3? MCQ with Answer and Explanation

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Average of 9 numbers 240. If average of 6 is 235, average of remaining 3?

A. 245

B. 250

C. 248

D. 255

Answer: Option B

Solution (By JKSSB Mock Tests)

Sum9=2160. Sum6=1410. Remaining=750. Average=250.

This question belongs to: Maths Average

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Question #1

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The average of 4 numbers is 19. If each number is multiplied by 3 and then 2 is added, what is the new average?

A. 59

B. 55

C. 61

D. 57

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Correct Answer: Option A

Explanation:
New average = (19×3)+2 =57+2=59.

This question belongs to: Maths Average

Question #2

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Average of 4,8,12,...,36 is

A. 22

B. 20

C. 18

D. 24

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Correct Answer: Option B

Explanation:
9 numbers. Average=(4+36)/2=20.

This question belongs to: Maths Average

Question #3

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Average of 10 numbers 2480. If average of 6 is 2475, average of remaining 4?

A. 2486

B. 2485

C. 2490

D. 2487.5

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Correct Answer: Option D

Explanation:
Sum10=24800. Sum6=14850. Remaining=9950. Average=2487.5.

This question belongs to: Maths Average

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