Final answer:
Dexter is twice Johnny's age now, and in 10 years, he will be thrice Johnny's age.
Explanation:
Dexter is currently X years old and Johnny is Y years old. We can set up the following equations:
- X = 2Y
- X + 10 = 3(Y + 10)
Solving these equations simultaneously gives us X = 20 and Y = 10. Therefore, Dexter is 20 years old, and Johnny is 10 years old.
Learn more about Age Difference Calculation here:
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