Average of 15 numbers 1810. If average of 9 is 1805, average of remaining 6? MCQ with Answer and Explanation

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Average of 15 numbers 1810. If average of 9 is 1805, average of remaining 6?

A. 1820

B. 1815

C. 1817.5

D. 1818

Answer: Option C

Solution (By JKSSB Mock Tests)

Sum15=27150. Sum9=16245. Remaining=10905. Average=1817.5.

This question belongs to: Maths Average

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Question #1

Average of 5,10,15,20,25,30,35,40 is

A. 22.5

B. 20

C. 25

D. 23

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Correct Answer: Option A

Explanation:
180/8=22.5.

This question belongs to: Maths Average

Question #2

Average of 10 numbers 28. If average of 6 is 25, average of remaining 4?

A. 32.5

B. 30

C. 35

D. 33

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Correct Answer: Option A

Explanation:
Sum10=280. Sum6=150. Remaining=130. Average=32.5.

This question belongs to: Maths Average

Question #3

Average of 3 numbers is 25. If two average 20, third is

A. 40

B. 30

C. 35

D. 25

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Correct Answer: Option C

Explanation:
Third =75 -40=35.

This question belongs to: Maths Average

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