If average of 4 numbers is x and average of 6 other is y, average of all 10 is MCQ with Answer and Explanation

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If average of 4 numbers is x and average of 6 other is y, average of all 10 is

A. (2x + 3y)/5

B. (4x + 6y)/10

C. x + y

D. (x + y)/2

Answer: Option B

Solution (By JKSSB Mock Tests)

Total = 4x + 6y. Average = (4x + 6y)/10.

This question belongs to: Maths Average

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Practice More Average Questions

Question #1

The average of 25,50,75 is

A. 45

B. 60

C. 55

D. 50

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Correct Answer: Option D

Explanation:
Sum=150. Average=50.

This question belongs to: Maths Average

Question #2

Average of 12 numbers 75. If average of 7 is 70, average of remaining 5?

A. 85

B. 80

C. 82

D. 78

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Correct Answer: Option C

Explanation:
Sum12=900. Sum7=490. Remaining=410. Average=82.

This question belongs to: Maths Average

Question #3

What is the average of all odd numbers from 1 to 19?

A. 9.5

B. 9

C. 10.5

D. 10

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Correct Answer: Option D

Explanation:
Odd numbers: 1,3,5,...,19. There are 10 terms. Sum = n^2 =10^2=100. Average=100/10=10.

This question belongs to: Maths Average

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