Question
The cost price of an article is Rs. (4n + 90). It is
marked 25% above its cost price and sold after allowing a discount of Rs. 150. If the selling price of the article is Rs. 1,950, then find the cost price of the article.Solution
ATQ, Marked price of article = 1.25 × (4n + 90) = Rs. (5n + 112.5)
Selling price of article = 5n + 112.5 − 150 = Rs. (5n − 37.5)
So, 5n − 37.5 = 1,950
Or, 5n = 1,987.5
Or, n = 397.5
Therefore, cost price of article = 4 × 397.5 + 90 = Rs. 1,680
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