Question
Determine the original price of an item purchased by A
from a shopkeeper. A received a discount of 20%, while B bought the same item with a 37.5% discount and paid Rs. 1500 for it.Solution
ATQ,
Let the original price of the item be Rs. X. B got a 37.5% discount, so he paid 62.5% of the original price. This means: 
Multiply both sides by 8/5 to find X:
Hence, the original price of the item is Rs.2400
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