The average of 1380,1840,2300 is MCQ with Answer and Explanation

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The average of 1380,1840,2300 is

A. 1830

B. 1850

C. 1840

D. 1835

Answer: Option C

Solution (By JKSSB Mock Tests)

5520/3=1840.

This question belongs to: Maths Average

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Question #1

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Average of 8 numbers 900. If average of 5 is 895, average of remaining 3?

A. 905

B. 907

C. 910

D. 908.33

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Correct Answer: Option D

Explanation:
Sum8=7200. Sum5=4475. Remaining=2725. Average≈908.33.

This question belongs to: Maths Average

Question #2

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Average of 15 numbers 1960. If average of 9 is 1955, average of remaining 6?

A. 1970

B. 1968

C. 1965

D. 1967.5

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Correct Answer: Option D

Explanation:
Sum15=29400. Sum9=17595. Remaining=11805. Average=1967.5.

This question belongs to: Maths Average

Question #3

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The average weight of 20 students is 50 kg. If the teacher's weight is added, the average becomes 52 kg. Find the teacher's weight.

A. 92 kg

B. 90 kg

C. 94 kg

D. 88 kg

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Correct Answer: Option A

Explanation:
Total weight of 20 = 20×50=1000. Total of 21 =21×52=1092. Teacher's weight =1092-1000=92.

This question belongs to: Maths Average

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