You Have To Be A Genius To Solve 20 Of These Logic Puzzles

Zoe is four times as old as her little sister, Kris. In 20 years, Kris will be half as old as Zoe. How old could Zoe be right now?

Retry Correct Incorrect If Zoe is 40 years old, that makes Kris 10 years old. In 20 years, Kris will be 30 years old and Zoe will be 60 years old, making Kris half of Zoe’s age!

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Unsplash | Roberto Nickson

Unsplash | Roberto Nickson

Zoe is four times as old as her little sister, Kris. In 20 years, Kris will be half as old as Zoe. How old could Zoe be right now?

• 60
• 80
• 20
• 40