The average of 7 numbers is 39. If one number is 48, find the average of the remaining 6. MCQ with Answer and Explanation

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The average of 7 numbers is 39. If one number is 48, find the average of the remaining 6.

A. 37

B. 36.5

C. 37.5

D. 38

Answer: Option C

Solution (By JKSSB Mock Tests)

Sum=7×39=273. Remaining sum=273-48=225. Avg=225/6=37.5.

This question belongs to: Maths Average

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Question #1

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The average of 3 numbers is 12. If the numbers are in the ratio 1:2:3, find the smallest.

A. 8

B. 4

C. 6

D. 10

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Correct Answer: Option C

Explanation:
Sum=3×12=36. Ratio sum=6. Smallest = (1/6)×36=6.

This question belongs to: Maths Average

Question #2

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The average of 8 numbers is 26. If one number is 30, find the average of the remaining 7.

A. 26

B. 25.43

C. 24.86

D. 25.5

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Correct Answer: Option B

Explanation:
Sum=8×26=208. Remaining sum=208-30=178. Avg=178/7=25.43.

This question belongs to: Maths Average

Question #3

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Average of 30 students 60 marks. If 10 students 70 marks, average of remaining 20?

A. 52

B. 50

C. 55

D. 58

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Correct Answer: Option C

Explanation:
Total=1800. 10=700. Remaining=1100/20=55.

This question belongs to: Maths Average

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