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प्रश्न
15% increase in price of an article, which is Rs 1,620, is the increase of Rs ______.
उत्तर
15% increase in price of an article, which is Rs 1,620, is the increase of Rs 212.
Explanation:
Let the price of the article be Rs. x.
After 15% increased in price, price became Rs. 1620
So, `1620 = x + x xx 15/100`
⇒ `1620 = (115x)/100`
⇒ 115x = 1620 × 100
⇒ `x = (1620 xx 100)/115`
⇒ x = Rs 1408
Hence, increase in price = Rs. 1620 – Rs. 1408 = Rs. 212
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