SOLUTION: 4/5 of a certain number is 64.Find half of that number. what is the beast way to solve this type of Que.??

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Question 730312: 4/5 of a certain number is 64.Find half of that number.
what is the beast way to solve this type of Que.??
Answer by rfer(16322) About Me  (Show Source):
You can put this solution on YOUR website!
(64/.80)/2=40
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(64/(4/5))/2=
(64*5/4)/2=40
Your choice