A person bought an article and sold it at a loss of 10%. If he had bought it for 20% less and sold it for Rs.55 more he would have had a profit of 40%. The cost price of the article is___  Choices
A) 125
B) 150.5
C) 112.5
D) 113
E) None
now x is CP   sold it at a loss of 10%=90x/100=9x/10   bought it for 20% less=80x/100=4x/5   profit 40%of 4x/5=140x/100*4x/5=56x/50   56x/50-9x/10=55rs   560x-450x/500=55rs   110x/500=55rs   x=500*55/110   x=27500/110= 
<gadget id="calculator">27500/110</gadget>
<output>250</output>
250   x=250   ANSWNoneR:None
<result>E</result>
A person bought an article and sold it at a loss of 10%. If he had bought it for 20% less and sold it for Rs.55 more he would have had a profit of 40%. The cost price of the article is___