Pre-Calculus

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I'm not sure who to ask, but I have math problem I need help with. The math question is:

IN PRINTING AN ARTICLE OF 48,000 WORDS, A PRINTER DECIDES TO USE TWO SIZES OF TYPE. USING THE LARGER TYPE, A PRINTED PAGE CONTAINS 1,800 WORDS. USING THE SMALLER TYPE, A PAGE CONTAINS 2400 WORDS. THE ARTICLE IS ALLOTTED 21 FULL PAGES IN A MAGAZINE. HOW MANY PAGES MUST BE IN THE SMALLER TYPE?

I need the formula and the answer. I really hope someone can help me with this stupid question.

IN PRINTING AN ARTICLE OF 48,000 WORDS, A PRINTER DECIDES TO USE TWO SIZES OF TYPE. USING THE LARGER TYPE, A PRINTED PAGE CONTAINS 1,800 WORDS. USING THE SMALLER TYPE, A PAGE CONTAINS 2400 WORDS. THE ARTICLE IS ALLOTTED 21 FULL PAGES IN A MAGAZINE. HOW MANY PAGES MUST BE IN THE SMALLER TYPE?

I need the formula and the answer. I really hope someone can help me with this stupid question.

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