Average of 12 numbers 38. If average of 9 is 35, average of remaining 3? MCQ with Answer and Explanation

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Average of 12 numbers 38. If average of 9 is 35, average of remaining 3?

A. 45

B. 50

C. 47

D. 48

Answer: Option C

Solution (By JKSSB Mock Tests)

Sum12=456. Sum9=315. Remaining=141. Average=47.

This question belongs to: Maths Average

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Question #1

Average of 8 numbers 2250. If average of 5 is 2245, average of remaining 3?

A. 2255

B. 2258.33

C. 2257

D. 2260

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Correct Answer: Option B

Explanation:
Sum8=18000. Sum5=11225. Remaining=6775. Average≈2258.33.

This question belongs to: Maths Average

Question #2

Average of 5 numbers is 30. If average of first 3 is 28, average of last 3 is 32, then the 3rd number is

A. 32

B. 28

C. 31

D. 30

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Correct Answer: Option D

Explanation:
Sum5=150. Sum1-3=84. Sum3-5=96. 3rd =84 +96 -150=30.

This question belongs to: Maths Average

Question #3

Average of 9 numbers 1340. If average of 6 is 1335, average of remaining 3?

A. 1355

B. 1345

C. 1348

D. 1350

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Correct Answer: Option D

Explanation:
Sum9=12060. Sum6=8010. Remaining=4050. Average=1350.

This question belongs to: Maths Average

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