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The day before yesterday, Jenny was 17 years old. Next year, she'll be 20 years old. How is this possible? |
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Today is January 1st, her 18th birthday was on December 31st. This year she'll be 19; 20 next. |
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Today is January 1st. Her 18th birthday was on December 31st, so this year she will be 19 and next year she'll 20. |
