Monica purchased a pressure cooker at 9/10th of its selling price. Later she sold it at 8% more than its selling price.
What is her gain percentage ??
In the first, we assign a value to original selling price.
Let us assume that original selling price of cooker is Rs 100.
Monica bought it at 9/10 th of original selling price.
==>> cost price = 9/10 * original selling price
==>> cost price = 9/10 * 100
==>> cost price = 90.
Monica sold the pressure cooker at 8% more than its original selling price.
==>> New selling price = original price + 8% of original price
==>> = 100 + 8%of 100
==>> New selling price = 100 + 8
==>> New selling price = 108
This means Monica bought the cooker at 90 and resold it at 108.
Her gain = 108 - 90 = 18
To find out gain percentage,
Gain percentage = 18/90 * 100
==>> 1/5 * 100
==>> Gain percentage = 20% !!!
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