gsm8k-0012

# GSM8K Problem 13

Carlos is planting a lemon tree. The tree will cost $90 to plant. Each year it will grow 7 lemons, which he can sell for $1.5 each. It costs $3 a year to water and feed the tree. How many years will it take before he starts earning money on the lemon tree?

Reason step by step, then give ONLY the final answer on the last line as \boxed{ANSWER}.

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Carlos needs to recoup the initial $90 cost. Each year, after accounting for the $3 cost, he makes a net profit of $7.5. Dividing the initial cost by the annual net profit gives 90 / 7.5 = 12 years.

\boxed{12}