Average of 10 numbers 1780. If average of 6 is 1775, average of remaining 4? MCQ with Answer and Explanation

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Average of 10 numbers 1780. If average of 6 is 1775, average of remaining 4?

A. 1787.5

B. 1786

C. 1785

D. 1790

Answer: Option A

Solution (By JKSSB Mock Tests)

Sum10=17800. Sum6=10650. Remaining=7150. Average=1787.5.

This question belongs to: Maths Average

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Practice More Average Questions

Question #1

If average of 9, 12, 15, x is 13, x is

A. 17

B. 14

C. 15

D. 16

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Correct Answer: Option D

Explanation:
Sum=52. 9+12+15+x=52. x=16.

This question belongs to: Maths Average

Question #2

The average of 5 numbers is 31. If each number is multiplied by 2 and then 4 is added, what is the new average?

A. 68

B. 66

C. 62

D. 64

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Correct Answer: Option B

Explanation:
New average = (31×2)+4 =62+4=66.

This question belongs to: Maths Average

Question #3

Average of 1305,1740,2175 is

A. 1730

B. 1740

C. 1750

D. 1735

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Correct Answer: Option B

Explanation:
5220/3=1740.

This question belongs to: Maths Average

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