The average of five numbers is 27. If one number is excluded, the average becomes 25. What is the excluded number? MCQ with Answer and Explanation

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The average of five numbers is 27. If one number is excluded, the average becomes 25. What is the excluded number?

A. 35

B. 30

C. 45

D. 40

Answer: Option A

Solution (By JKSSB Mock Tests)

Sum of five numbers = 5 × 27 = 135. Sum of four numbers = 4 × 25 = 100. Excluded number = 135 - 100 = 35.

This question belongs to: Maths Average

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Question #1

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Average of 15 numbers 1210. If average of 9 is 1205, average of remaining 6?

A. 1217.5

B. 1220

C. 1218

D. 1215

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Correct Answer: Option A

Explanation:
Sum15=18150. Sum9=10845. Remaining=7305. Average=1217.5.

This question belongs to: Maths Average

Question #2

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Average of 12 numbers 470. If average of 8 is 465, average of remaining 4?

A. 482

B. 475

C. 478

D. 480

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Correct Answer: Option D

Explanation:
Sum12=5640. Sum8=3720. Remaining=1920. Average=480.

This question belongs to: Maths Average

Question #3

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Average of 50 numbers 20. If numbers are decreased by 2 each, new average?

A. 19

B. 22

C. 20

D. 18

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Correct Answer: Option D

Explanation:
New average=20-2=18.

This question belongs to: Maths Average

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