The average of first 15 multiples of 4 is MCQ with Answer and Explanation

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The average of first 15 multiples of 4 is

A. 34

B. 28

C. 30

D. 32

Answer: Option D

Solution (By JKExamLibrary)

4*(1+15)/2=32.

This question belongs to: Maths Average

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Question #1

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Average of 5 numbers is 30. If average of first 3 is 28, average of last 3 is 32, then the 3rd number is

A. 31

B. 28

C. 32

D. 30

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Correct Answer: Option D

Explanation:
Sum5=150. Sum1-3=84. Sum3-5=96. 3rd =84 +96 -150=30.

This question belongs to: Maths Average

Question #2

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The average of 1350,1800,2250 is

A. 1810

B. 1790

C. 1800

D. 1795

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Correct Answer: Option C

Explanation:
5400/3=1800.

This question belongs to: Maths Average

Question #3

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Average of 1435,2870 is

A. 2152.5

B. 2140

C. 2160

D. 2150

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Correct Answer: Option A

Explanation:
2152.5.

This question belongs to: Maths Average

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