The average of 4 numbers is 18. If one number is 22, find the average of the remaining 3. MCQ with Answer and Explanation

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The average of 4 numbers is 18. If one number is 22, find the average of the remaining 3.

A. 17

B. 17.33

C. 16

D. 16.67

Answer: Option D

Solution (By JKSSB Mock Tests)

Sum=4×18=72. Remaining sum=72-22=50. Avg=50/3=16.67.

This question belongs to: Maths Average

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Question #1

Average of 8 numbers 28. If average of 5 is 25, average of remaining 3?

A. 33.33

B. 30

C. 32

D. 35

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Correct Answer: Option A

Explanation:
Sum8=224. Sum5=125. Remaining=99. Average=33.

This question belongs to: Maths Average

Question #2

Average of 6 numbers 45. If average of 4 is 40, average of remaining 2?

A. 55

B. 50

C. 60

D. 52.5

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Correct Answer: Option A

Explanation:
Sum6=270. Sum4=160. Remaining=110. Average=55.

This question belongs to: Maths Average

Question #3

The average of 8 numbers is 50. If one number 70 is replaced by 54, what is the new average?

A. 49

B. 50

C. 52

D. 48

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Correct Answer: Option D

Explanation:
Original total = 8×50 = 400. New total = 400−70+54 = 384. New average = 384/8 = 48.

This question belongs to: Maths Average

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