Question:A man sold an article for tk 247.50.thereby gaining `(12) 1/2`%. The cost of the article was: 

A Tk 225 
B Tk 224 
C Tk 220 
D Tk 210 

+ Answer
C 

+ Explanation
Here S.P = Tk 247.50, 
Loss=Tk `(25)/2` %, 
So C.P= Tk `((100)/(100+(25)/2) xx 247.50)`
=Tk '(200)/225xx247.50'
therefore C.P= Tk 220

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Muhammad Abdullah Al Mamun

Editor, VCampus

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