An internet recently hired 8 new network,in addvertisement 20 network already employed.All new network cam from university A.In addition 75%of computer addvertisement came from same university A.what fraction of original 20 network addvertisement came from same univerity A? pls help to solve	Choose the correct choice:
A) 13/20
B) 15/20
C) 14/20
D) 12/20
E) 11/20
New networks= 8   Already employed networks= 20   Total networks= 28   computer advt. from uni.13/20= 28*(75/100)= 
<gadget id="calculator">28*(75/100)</gadget>
<output>21</output>
21   out 28 networks 21 came from uni.13/20   among these 21 we know 8 are newly hired   so  21-8= 
<gadget id="calculator"> 21-8</gadget>
<output>13</output>
13 networks among previously employed networks came from uni.13/20   13/20nswer is : 13/20   13/20NSWER:13/20
<result>A</result>
An internet recently hired 8 new network,in addvertisement 20 network already employed.All new network cam from university A.In addition 75%of computer addvertisement came from same university A.what fraction of original 20 network addvertisement came from same univerity A? pls help to solve