A shopkeeper allows 28% discount on the marked price of an article and still makes a profit of 20%. If he gains ₹30.80 on the sale of one article, then what will be the cost price of the article?
Let the cost price be 100%.
Profit = 20%
20% = 30.8
Cost price(100%) = $$\frac{30.8}{20} \times 100$$ = Rs. 154
$$\therefore$$ The correct answer is option D.
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