15% increase in price of an article, which is Rs 1,620, is the increase of Rs _________
Solution:
If a price on article is Rs. 100 then an increase of 15% in the price result into new price of:
Rs. 100 + 15% of 100
= Rs. 100 + (15/100) × 100
= Rs. (100 + 15)
= Rs. 115
Therefore if the price of an article is Rs.1620, after a 15% increase then original price would be:
Original price = (100/115) × 1620
= (20/23) × 1620
= Rs. 1408.70
Therefore the increase in price is Rs. 1620 - Rs. 1408.70 = Rs. 211.3
✦ Try this: 20% increase in price of an article, which is Rs 1,440, is the increase of Rs _________
Original price = (100/120) × 1440
= 120 × 12
= Rs. 1200
The increase in price is Rs. 1440 - Rs. 1200 Rs. 240
☛ Also Check: NCERT Solutions for Class 8 Maths Chapter 8
NCERT Exemplar Class 8 Maths Chapter 9 Problem 23
15% increase in price of an article, which is Rs 1,620, is the increase of Rs _________
Summary:
15% increase in price of an article, which is Rs 1,620, is the increase of Rs 211.30
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