The average of 5 numbers is 38. If each number is multiplied by 2 and then 5 is subtracted, what is the new average? MCQ with Answer and Explanation

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The average of 5 numbers is 38. If each number is multiplied by 2 and then 5 is subtracted, what is the new average?

A. 66

B. 71

C. 76

D. 81

Answer: Option B

Solution (By JKExamLibrary)

New average = (38×2) -5 =76-5=71.

This question belongs to: Maths Average

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Question #1 Report Error

The average of all even numbers from 2 to 40 is

A. 21

B. 22

C. 19

D. 20

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Correct Answer: Option A

Explanation:
(2+40)/2=21.

This question belongs to: Maths Average

Question #2 Report Error

Find the average of first 10 natural numbers.

A. 6

B. 5.5

C. 6.5

D. 5

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Correct Answer: Option B

Explanation:
Sum of first 10 natural numbers = 10×11/2 = 55. Average = 55/10 = 5.5.

This question belongs to: Maths Average

Question #3 Report Error

Average age of 40 people 35 years. If 10 more with average 40 join, new average?

A. 35.5

B. 37

C. 36

D. 36.25

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Correct Answer: Option C

Explanation:
Total=1400+400=1800. /50=36.

This question belongs to: Maths Average

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