1.

Last year the cost of 1000 articles was ₹ 5000. This year it goes down to ₹ 4000. What is the percentage of decrease in price?

Answer»

Last year 

Cost of 1000 articles = ₹ 5000

∴ Cost of one article = \(\frac {5000}{1000} = ₹ 5\)

This year 

Cost of 1000 articles = ₹ 4000

∴ Cost of one article = \(\frac {4000}{1000} = ₹ 4\)

Decrease in price = ₹ 5 – ₹ 4 = ₹ 1 

Decrease In percentage = 1/5  × 100% = 20%



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