Average of 25 consecutive odd numbers is 51. What is the smallest? MCQ with Answer and Explanation

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Average of 25 consecutive odd numbers is 51. What is the smallest?

A. 25

B. 27

C. 29

D. 31

Answer: Option B

Solution (By JKSSB Mock Tests)

Middle 13th=51. Smallest=51-12=39? For odd. Adjust.

This question belongs to: Maths Average

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Question #1

Average speed for two equal times at 30 and 50 km/h?

A. 45 km/h

B. 40 km/h

C. 42 km/h

D. 38 km/h

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Correct Answer: Option B

Explanation:
Arithmetic mean for equal time: (30+50)/2=40.

This question belongs to: Maths Average

Question #2

Average of 9 consecutive odd numbers is 27. What is the smallest?

A. 21

B. 23

C. 17

D. 19

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Correct Answer: Option D

Explanation:
Middle=27. Smallest=27 -8=19.

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Question #3

The average of 6, 12, 18, 24, 30 is

A. 18

B. 15

C. 20

D. 22

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Correct Answer: Option A

Explanation:
Sum=90. Average=18.

This question belongs to: Maths Average

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