Question:x:(x-y)=2x:x হলে ,x=কত? 

A x=`1/y` 
B x=y 
C x=`1/2`y 
D x=2y 

+ Answer
D 

+ Explanation
ব্যাখ্যা:`x/(x-y)`=`(2x)/x`বা, `x/(x-y)`=`2/1`
 বা, 2x-2y=x বা, 2x-x=2y :. x=2y

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