13-03-2022
Chemistry

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A store sell 21 piece of clothing every 45 minutes.How long will it take the store to sell 100 pieces of clothing?

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13-03-2022

Explanation:

21 piece =45 mins

100 pieces= x

on cross multiplication

21x=45×100mins

21x =4500mins

x =4500mins÷21

=214.3mins or 3.57hrs

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