A book was sold at a discount of 10% on the pri nted pri ce and was purchas ed at a discount of 20% on the printed price. If the profit in the complete deal was ` 10, then the printed price of the book was –



[ A ]    ` 110
[ B ]    ` 80
[ C ]    ` 90
[ D ]    ` 100 right
Answer : Option D
Explanation :

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