Average of 9 numbers 1240. If average of 6 is 1235, average of remaining 3? MCQ with Answer and Explanation

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Average of 9 numbers 1240. If average of 6 is 1235, average of remaining 3?

A. 1250

B. 1248

C. 1255

D. 1245

Answer: Option A

Solution (By JKSSB Mock Tests)

Sum9=11160. Sum6=7410. Remaining=3750. Average=1250.

This question belongs to: Maths Average

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Question #1

The average of 5 numbers is 18. If each number is multiplied by 3, what is the new average?

A. 60

B. 36

C. 45

D. 54

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Correct Answer: Option D

Explanation:
New average =18×3=54.

This question belongs to: Maths Average

Question #2

Average of 15,30,45,60 is

A. 35

B. 37.5

C. 38

D. 40

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Correct Answer: Option B

Explanation:
Sum=150. Average=37.5.

This question belongs to: Maths Average

Question #3

Average of five consecutive odd numbers is 25. What is the largest number?

A. 27

B. 33

C. 31

D. 29

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Correct Answer: Option D

Explanation:
Let numbers be x-4, x-2, x, x+2, x+4. Average = x = 25. Largest = 25 + 4 = 29.

This question belongs to: Maths Average

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