First find Devin's new height by adding his growth to the original height: 65 inches + 3 inches = <<65+3=68>>68 inches

Then subtract 66 inches from Devin's height to find how many extra inches of height he has: 68 inches - 66 inches = <<68-66=2>>2 inches

Then multiply the number of extra inches by the percentage increase per inch to find the total percentage increase in his chances: 2 inches * 10%/inch = 20%

Then add the percentage increase to the base percentage to find Devin's overall chance of making the basketball team: 10% + 20% = 30%

# Answer

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<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
The chances of making the junior high basketball team start at 10% if you're 66 inches and increase 10% for every additional inch of height. Devin starts out as 65 inches tall, then grows 3 inches. What are his chances of making the basketball team?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
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The chances of making the junior high basketball team start at 10% if you're 66 inches and increase 10% for every additional inch of height. Devin starts out as 65 inches tall, then grows 3 inches. What are his chances of making the basketball team?
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