The average of 3 numbers is 12. If the first is 10 and the second is 15, find the third. MCQ with Answer and Explanation

Question Report Error

The average of 3 numbers is 12. If the first is 10 and the second is 15, find the third.

A. 9

B. 12

C. 11

D. 13

Answer: Option C

Solution (By JKExamLibrary)

Sum=3×12=36. Third=36-10-15=11.

This question belongs to: Maths Average

Discuss this Question (0)

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

Practice More Average Questions

Question #1 Report Error

Average of 9,18,27,36,45,54 is

A. 32

B. 31.5

C. 30

D. 33

View Answer & Solution Discuss

Correct Answer: Option B

Explanation:
189/6=31.5.

This question belongs to: Maths Average

Question #2 Report Error

Average of 25,50,75,100 is

A. 62.5

B. 70

C. 65

D. 60

View Answer & Solution Discuss

Correct Answer: Option A

Explanation:
250/4=62.5.

This question belongs to: Maths Average

Question #3 Report Error

The average of 7 numbers is 30. If each number is divided by 2, what is the new average?

A. 15

B. 13

C. 16

D. 14

View Answer & Solution Discuss

Correct Answer: Option A

Explanation:
New average =30/2=15.

This question belongs to: Maths Average

Explore All Average MCQs