What is the average of all even numbers from 2 to 30? MCQ with Answer and Explanation

Question

Share Report Error

What is the average of all even numbers from 2 to 30?

A. 16

B. 15

C. 15.5

D. 16.5

Answer: Option A

Solution (By JKSSB Mock Tests)

Even numbers: 2 to 30 inclusive. Number of terms = (30-2)/2+1=15. Sum = n/2*(first+last) =15/2*(2+30)=15/2*32=240. Average=240/15=16.

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

Average of 9 numbers 1390. If average of 6 is 1385, average of remaining 3?

A. 1395

B. 1398

C. 1405

D. 1400

View Answer & Solution Discuss

Get Complete Subject PDF for Maths

Correct Answer: Option D

Explanation:
Sum9=12510. Sum6=8310. Remaining=4200. Average=1400.

This question belongs to: Maths Average

Question #2

Average of 15 numbers 1660. If average of 9 is 1655, average of remaining 6?

A. 1665

B. 1670

C. 1668

D. 1667.5

View Answer & Solution Discuss

Get Complete Subject PDF for Maths

Correct Answer: Option D

Explanation:
Sum15=24900. Sum9=14895. Remaining=10005. Average=1667.5.

This question belongs to: Maths Average

Question #3

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

A. 23

B. 17

C. 21

D. 19

View Answer & Solution Discuss

Get Complete Subject PDF for Maths

Correct Answer: Option D

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

This question belongs to: Maths Average

Explore All Average MCQs