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Nature of Mathematics 12th Edition

Nature of Mathematics (12th Edition)

Book Edition12th Edition
Author(s)Smith
ISBN9780538737586
PublisherCengage
SubjectMath
Chapter 18, Section 18.1, CHAPTER CHALLENGE, Exercise 01
Page 871

See if you can fill in the question mark.

 

Explanation

The pattern goes like:

6+7+12=25

The square root of 25 is 5

Then

8+9+19=36

The square root of 25 is 6

 

So, 

72=49

Then, 49-(10+11)=28

Therefore, the question mark is 28. 

Answer

The question mark is 28. 

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Page 871