If average of 16 numbers is 42 and average of 12 is 40, average of remaining 4? MCQ with Answer and Explanation

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If average of 16 numbers is 42 and average of 12 is 40, average of remaining 4?

A. 46

B. 48

C. 50

D. 45

Answer: Option B

Solution (By JKExamLibrary)

Sum16=672. Sum12=480. Remaining=192. Average=48.

This question belongs to: Maths Average

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Question #1

Average of 20,30,40,50,60 is

A. 40

B. 42

C. 38

D. 45

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Correct Answer: Option A

Explanation:
Sum=200. Average=40.

This question belongs to: Maths Average

Question #2

Average of 255,340,425 is

A. 350

B. 330

C. 340

D. 335

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Correct Answer: Option C

Explanation:
1020/3=340.

This question belongs to: Maths Average

Question #3

Average of 20 numbers 70. If 5 numbers average 80, average of remaining 15?

A. 66.67

B. 65

C. 68

D. 67

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Correct Answer: Option A

Explanation:
Total=1400. 5=400. Remaining=1000/15≈66.67.

This question belongs to: Maths Average

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