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Robert had 5/6 as many erasers as Evan. When Evan gave half of his erasers to Robert, he then had 50 fewer erasers than his friend. How many erasers did Evan have at first?

 Jul 14, 2022
 #1
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Let Evan's erasers at first =  E

Let Robert's at first =  (5/6)E

 

When Evan gives (1/2) of his to Robert he has  (1/2)E left       and Robert has (5/6)E + (1/2)E

 

So

 

(1/2)E +  50 =  (5/6)E + (1/2)E

 

50 =(5/6)E

 

50 (6/5)  = E =   60    =  what Evan had at first

 

 

cool cool cool

 Jul 16, 2022

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