The average of 40,50,60,70 is MCQ with Answer and Explanation

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The average of 40,50,60,70 is

A. 50

B. 58

C. 55

D. 60

Answer: Option C

Solution (By JKSSB Mock Tests)

220/4=55.

This question belongs to: Maths Average

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Question #1

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Average of 7 consecutive odd numbers is 35. Largest number?

A. 39

B. 43

C. 37

D. 41

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Correct Answer: Option D

Explanation:
Middle=35. Largest=35+6=41.

This question belongs to: Maths Average

Question #2

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Average of 10 numbers 1880. If average of 6 is 1875, average of remaining 4?

A. 1887.5

B. 1886

C. 1890

D. 1885

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Correct Answer: Option A

Explanation:
Sum10=18800. Sum6=11250. Remaining=7550. Average=1887.5.

This question belongs to: Maths Average

Question #3

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Average of 20 numbers 90. If average of 12 is 85, average of remaining 8?

A. 95

B. 96

C. 100

D. 97.5

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Correct Answer: Option D

Explanation:
Sum20=1800. Sum12=1020. Remaining=780. Average=97.5.

This question belongs to: Maths Average

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