Average of 15 numbers 28. If one number 40 is replaced by 25, new average? MCQ with Answer and Explanation

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Average of 15 numbers 28. If one number 40 is replaced by 25, new average?

A. 28

B. 27

C. 27.5

D. 26.67

Answer: Option B

Solution (By JKExamLibrary)

Change -15, decrease 1. New=27.

This question belongs to: Maths Average

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Question #1 Report Error

Average of 10 consecutive numbers is 55.5. Largest number?

A. 60

B. 62

C. 61

D. 59

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Correct Answer: Option A

Explanation:
Largest =55.5 +4.5=60.

This question belongs to: Maths Average

Question #2 Report Error

Average of 9 numbers 1940. If average of 6 is 1935, average of remaining 3?

A. 1955

B. 1948

C. 1945

D. 1950

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Correct Answer: Option D

Explanation:
Sum9=17460. Sum6=11610. Remaining=5850. Average=1950.

This question belongs to: Maths Average

Question #3 Report Error

Average salary of 20 employees Rs. 8000. If manager Rs. 20000 included, new average?

A. 9000

B. 8500

C. 8200

D. 8800

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Correct Answer: Option B

Explanation:
Total=160000. New total=180000. /21≈8571 approx 8500.

This question belongs to: Maths Average

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