dariakorkunova dariakorkunova

Today at 8:38 PM
Mathematics

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If Mr. David does a job in x hours and Mr. Ludwig in y hours. What part of the job they could do together if they worked for k hrs?

Answer :

15legendsonly 15legendsonly

Today at 8:43 PM

Answer:

(1/x + 1/y)k is the answer :)

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