Average of 7 numbers 50. If average of 4 is 45, average of remaining 3? MCQ with Answer and Explanation

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Average of 7 numbers 50. If average of 4 is 45, average of remaining 3?

A. 60

B. 57.67

C. 58

D. 55

Answer: Option B

Solution (By JKExamLibrary)

Sum7=350. Sum4=180. Remaining=170. Average≈56.67 approx 57.

This question belongs to: Maths Average

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Question #1 Report Error

Average of 10 numbers 530. If average of 6 is 525, average of remaining 4?

A. 535

B. 540

C. 536

D. 537.5

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Correct Answer: Option D

Explanation:
Sum10=5300. Sum6=3150. Remaining=2150. Average=537.5.

This question belongs to: Maths Average

Question #2 Report Error

Average of 10 numbers 190. If average of 6 is 185, average of remaining 4?

A. 200

B. 197.5

C. 196

D. 195

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Correct Answer: Option B

Explanation:
Sum10=1900. Sum6=1110. Remaining=790. Average=197.5.

This question belongs to: Maths Average

Question #3 Report Error

The average of 4 consecutive odd numbers is 32. What is the smallest number?

A. 29

B. 31

C. 27

D. 33

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Correct Answer: Option A

Explanation:
Numbers are 29,31,33,35. Their average is 32. Smallest number = 29.

This question belongs to: Maths Average

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