Average of 7 numbers 40. If average of 3 is 35, average of remaining 4? MCQ with Answer and Explanation

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Average of 7 numbers 40. If average of 3 is 35, average of remaining 4?

A. 43.75

B. 45

C. 42

D. 40

Answer: Option A

Solution (By JKExamLibrary)

Sum7=280. Sum3=105. Remaining=175. Average=43.75.

This question belongs to: Maths Average

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Question #1 Report Error

Average of 9 numbers 1640. If average of 6 is 1635, average of remaining 3?

A. 1650

B. 1655

C. 1645

D. 1648

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Correct Answer: Option A

Explanation:
Sum9=14760. Sum6=9810. Remaining=4950. Average=1650.

This question belongs to: Maths Average

Question #2 Report Error

Average of 15 numbers 38. If one number 50 replaced by 20, new average?

A. 37

B. 36

C. 35

D. 36.67

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Correct Answer: Option D

Explanation:
Change -30, decrease 2. New≈36.

This question belongs to: Maths Average

Question #3 Report Error

Average of 55,110,165 is

A. 120

B. 105

C. 100

D. 110

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Correct Answer: Option D

Explanation:
330/3=110.

This question belongs to: Maths Average

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