Average of 9 numbers 2140. If average of 6 is 2135, average of remaining 3? MCQ with Answer and Explanation

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Average of 9 numbers 2140. If average of 6 is 2135, average of remaining 3?

A. 2150

B. 2148

C. 2155

D. 2145

Answer: Option A

Solution (By JKExamLibrary)

Sum9=19260. Sum6=12810. Remaining=6450. Average=2150.

This question belongs to: Maths Average

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Practice More Average Questions

Question #1 Report Error

The average of 8,16,24,32 is

A. 18

B. 24

C. 20

D. 22

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Correct Answer: Option C

Explanation:
Sum=80. Average=20.

This question belongs to: Maths Average

Question #2 Report Error

If average of x numbers is y and average of z numbers is w, combined average is

A. (y + w)/2

B. (x + z) y / (x + z)

C. (x y + z w)/(x+z)

D. x y + z w

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Correct Answer: Option C

Explanation:
Weighted average formula: (x*y + z*w) / (x + z).

This question belongs to: Maths Average

Question #3 Report Error

The average of 4 numbers is 30. If the numbers are in the ratio 1:2:3:4, find the largest number.

A. 60

B. 36

C. 48

D. 24

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Correct Answer: Option C

Explanation:
Sum = 4×30=120. Ratio sum =1+2+3+4=10. Largest = (4/10)×120=48.

This question belongs to: Maths Average

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