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The junior senator can do a labyrinth in 50 minutes. The senior senator can do a labyrinth in 30 minutes.  Working together, how many minutes would it take them to work their way through 12 labyrinths?

 Jun 4, 2021
 #1
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Let's just  figure one labyrinth, first

 

This is  easy

 

1/50  +  1/30  =

 

(30  + 50)  / (50 * 30)  =    80  /1500  =    8  /150  =   4 / 75

 

Invert  this fraction and it will tell you how many minutes it takes  for both working together =  75 / 4  min

 

So

 

12 (75) / 4    =   3 * 75    =     225 minutes

 

 

cool cool cool

 Jun 4, 2021
 #2
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https://brainly.com/question/23935579

 Jun 5, 2021

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