Practice problem

Unit Rates — Definition & Examples

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Christine
Alex Federspiel
Amy Feraco
Caroline K

Deathly Hallows symbol. — Image source: By Walkeraj CC BY-SA 4.0, via Wikimedia Commons

Fastest Selling Fiction

According to the Guinness World Record, the fastest selling book of fiction is Harry Potter and the Deathly Hallows. It sold $8.3$ million copies in the first $24$ hours (or $345{,}833$ books per hour).

How many Deathly Hallows copies were sold per second within the first $24$ hours of its release? Use a calculator if you want!