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Hector can solve one word problem every ...

Hector can solve one word problem every 4 minutes before noon, and one word problem every 10 minutes after noon.
`{:("Quantity A","Quantity B"),("The number of word problems","The number of word problems"),("Hector can solve between","Hector can solve between"),("11:40 am and noon","noon nad 12:40 pm"):}`

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