What is the average of the first 12 even numbers? MCQ with Answer and Explanation

Question

Share Report Error

What is the average of the first 12 even numbers?

A. 13.5

B. 12.5

C. 13

D. 14

Answer: Option C

Solution (By JKSSB Mock Tests)

Sum of first 12 even numbers = 12×13 =156 (since sum = n(n+1) for first n evens). Average=156/12=13.

This question belongs to: Maths Average

Request complete Subject PDF

Discuss this Question (0)

No comments yet. Be the first to start the discussion!

Practice More Average Questions

Question #1

The average of 5 numbers is 24. If two numbers 18 and 30 are excluded, average of remaining?

A. 25

B. 22

C. 26

D. 24

View Answer & Solution Discuss

Get Complete Subject PDF for Maths

Correct Answer: Option D

Explanation:
Sum5=120. Remaining sum=120-48=72. Average=72/3=24.

This question belongs to: Maths Average

Question #2

Average of 8 numbers 1150. If average of 5 is 1145, average of remaining 3?

A. 1157

B. 1155

C. 1158.33

D. 1160

View Answer & Solution Discuss

Get Complete Subject PDF for Maths

Correct Answer: Option C

Explanation:
Sum8=9200. Sum5=5725. Remaining=3475. Average≈1158.33.

This question belongs to: Maths Average

Question #3

Average of 12 numbers 2470. If average of 8 is 2465, average of remaining 4?

A. 2482

B. 2480

C. 2475

D. 2478

View Answer & Solution Discuss

Get Complete Subject PDF for Maths

Correct Answer: Option B

Explanation:
Sum12=29640. Sum8=19720. Remaining=9920. Average=2480.

This question belongs to: Maths Average

Explore All Average MCQs