Question:
15% increase in price of an article, which is Rs.1,620, is the increase of ____.
Solution:
Rs.212
Explanation: Let x is the price of the article.
Thus, as per given question;
1620 = x + x × (15/100)
1620 = 115x/100
115x = 1620 × 100
x = (1620×100)/115
x = 1408
Hence, increase in price = 1620 – 1408 = 212.