Question:x=1 অথবা x=`1/3`  এবং y=2-x হলে (x,y)=কত ? 

A (1,1),`((1/3,3/3))` 
B (1.1),`((3,5/3))` 
C (1,1),`((3,3/5))` 
D (1,1),`((1/3,5/3))` 

+ Answer
D 

+ Explanation
ব্যাখ্যা : x=1 হলে y=2-1=1
x=`1/3` হলে y=`2-1/3`=`(6-1)/3`=`5/3`
:. (x,y)=(1,1),`((1/3,5/3))`

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