Average of 9,27,45 is MCQ with Answer and Explanation

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Average of 9,27,45 is

A. 30

B. 25

C. 27

D. 28

Answer: Option C

Solution (By JKExamLibrary)

Sum=81. Average=27.

This question belongs to: Maths Average

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Question #1

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The average of 1560,2080,2600 is

A. 2090

B. 2070

C. 2080

D. 2075

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Correct Answer: Option C

Explanation:
6240/3=2080.

This question belongs to: Maths Average

Question #2

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The average age of 12 students is 20 years. If the age of the teacher is included, the average increases by 1 year. What is the age of the teacher?

A. 31

B. 33

C. 32

D. 34

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Correct Answer: Option B

Explanation:
Total age of students = 12 × 20 = 240. New average = 21. Total age of 13 people = 13 × 21 = 273. Teacher's age = 273 - 240 = 33 years.

This question belongs to: Maths Average

Question #3

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

A. 1817.5

B. 1820

C. 1818

D. 1815

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Correct Answer: Option A

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

This question belongs to: Maths Average

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