Average of first 50 even numbers is MCQ with Answer and Explanation

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Average of first 50 even numbers is

A. 52

B. 51

C. 50

D. 49

Answer: Option B

Solution (By JKSSB Mock Tests)

First 50 even: 2 to 100. Average = (2+100)/2 =51.

This question belongs to: Maths Average

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Question #1

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If average of 5 numbers is 36 and average of 3 is 30, average of remaining 2?

A. 45

B. 48

C. 40

D. 42

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Correct Answer: Option A

Explanation:
Sum5=180. Sum3=90. Remaining=90. Average=45.

This question belongs to: Maths Average

Question #2

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The average of 6 numbers is 18. If one number is 30, find the average of the remaining 5.

A. 14.4

B. 16

C. 15.6

D. 16.8

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Correct Answer: Option C

Explanation:
Sum=6×18=108. Remaining sum=108-30=78. Avg=78/5=15.6.

This question belongs to: Maths Average

Question #3

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Average of 10 numbers 1230. If average of 6 is 1225, average of remaining 4?

A. 1236

B. 1237.5

C. 1235

D. 1240

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Correct Answer: Option B

Explanation:
Sum10=12300. Sum6=7350. Remaining=4950. Average=1237.5.

This question belongs to: Maths Average

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