Re: ai giỏi math, giúp dùm

Posted by B ..73..180.33 on Dec 24, 2020 at 16:56:53:

In Reply to: Re: ai giỏi math, giúp dùm posted by DG on Dec 24, 2020 at 14:49:15:

ha ha ha ha

Here is the answer :

T = total

78 + 0.20T = T
78 = 0.8 T
T = 78 /0.8 = 97.5

50% T = 1/2 x T = 97.5 / 2 = 48.75


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