Intelligent Math Puzzle – Challenge 90

Do you consider yourself a “math puzzle person”? If so, then let's take a shot at this mathematics challenge and see what you come up with. The solution is given.

Intelligent Math Puzzle – Challenge 90

Challenge:

In the figure above, A and B represent different digits. What is the value of A × B?

A- 8

B- 12

C- 18

D- 24

E- 30

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The correct answer is D.

A and B represent different digits and A × AB = 108
Therefore, A = 3? Why?
3 × 3B = 108 ⇒ B = 8
Then: A × B = 3 × 8 = 24

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Math and Critical Thinking Challenges: For the Middle and High School Student