Mathematics, 12.12.2020 15:50 mjwaple57

Thomas can build a bird house in 30 minutes and when Alexa helps it takes 10 minutes. How long does it take Alexa if she works alone? Options:

60 minutes

15 minutes

10 minutes

12 minutes

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More questions: Mathematics Another questions

Thomas can build a bird house in 30 minutes and when Alexa helps it takes 10 minutes. How long does it take Alexa if she works alone? Options: 60 minutes 15 minutes 10 minutes 12 minutes

Answers

Another question on Mathematics

Thomas can build a bird house in 30 minutes and when Alexa helps it takes 10 minutes. How long does it take Alexa if she works alone? Options:

60 minutes

15 minutes

10 minutes

12 minutes