ANSWER
Find out the 65% of 200 use proportional reasoning.
To proof
let us assume that the 65% of 200 be x.
Now 65% is written in the simple form
[tex]= \frac{65}{100}[/tex]
As given use proportional reasoning
thus
[tex]\frac{65}{100}\ is\ proportional\ to\ \frac{x}{200}[/tex]
[tex]\frac{65}{100} = \frac{x}{200}[/tex]
[tex]x= \frac{200\times65}{100}[/tex]
therefore
x= 130
130 is 65% of 200.
Hence proved
