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A worker in an assembly line takes 2 hours to produce 120 parts. At that rate how many parts can she produce in 9 hours?

User Khanh Van
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first we find one hour rate means 120 / 2 =60 means 60 parts in one hour so now we will find 9 hours rate just multiply 60 by 9 = 540
User Ryan Dines
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3 votes
120 parts / 2 hours = 60 parts per hour
60 parts per hour * 9 hours = 540 parts
User Pheon
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