A shopkeeper sold an article at $100 with 45% profit. Then find its cost price?
Select the correct option.
A) $120  B) $100  C) $91  D) $72  E) $69
cost price = selling price *100/(100+profit)   C.P. = 100*100/145 = $69(approximately)   Answer is $69
<result>E</result>
A shopkeeper sold an article at $100 with 45% profit. Then find its cost price?