Average of 945,1260,1575 is MCQ with Answer and Explanation

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Average of 945,1260,1575 is

A. 1255

B. 1260

C. 1250

D. 1270

Answer: Option B

Solution (By JKSSB Mock Tests)

3780/3=1260.

This question belongs to: Maths Average

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Question #1

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The average of 5 numbers is 28. If one number is excluded, the average becomes 25. What is the excluded number?

A. 35

B. 30

C. 45

D. 40

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Correct Answer: Option D

Explanation:
Sum of 5 numbers = 5 × 28 = 140. Sum of remaining 4 numbers = 4 × 25 = 100. Excluded number = 140 - 100 = 40.

This question belongs to: Maths Average

Question #2

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Average of 50,75,100 is

A. 75

B. 80

C. 70

D. 72

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Correct Answer: Option A

Explanation:
225/3=75.

This question belongs to: Maths Average

Question #3

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Average of 21, 28, 35, 42 is

A. 30

B. 31.5

C. 32

D. 33

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Correct Answer: Option B

Explanation:
Sum=126. Average=31.5.

This question belongs to: Maths Average

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