The average of 100 numbers is 50. The number 100 was misread as 10. Correct average? MCQ with Answer and Explanation

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The average of 100 numbers is 50. The number 100 was misread as 10. Correct average?

A. 49

B. 51

C. 50

D. 50.9

Answer: Option D

Solution (By JKSSB Mock Tests)

Error -90. Increase 90/100=0.9. New=50.9.

This question belongs to: Maths Average

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Question #1

Average of 195,260,325 is

A. 270

B. 255

C. 260

D. 250

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Correct Answer: Option C

Explanation:
780/3=260.

This question belongs to: Maths Average

Question #2

Average of 21,35,49 is

A. 35

B. 30

C. 32

D. 40

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Correct Answer: Option A

Explanation:
Sum=105. Average=35.

This question belongs to: Maths Average

Question #3

The average of 3 numbers is 9. If the numbers are in the ratio 2:3:4, find the smallest.

A. 5

B. 8

C. 6

D. 7

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Correct Answer: Option C

Explanation:
Sum=3×9=27. Ratio sum=2+3+4=9. Smallest = (2/9)×27=6.

This question belongs to: Maths Average

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