The ratio of the selling price to the cost price in a transaction is 4 : 5. If the selling price is ₹80, then how much is the loss?
The ratio of the selling price to the cost price in a transaction is 4 : 5.
Let's assume the selling price and cost price are 4y and 5y respectively.
If the selling price is ₹80.
4y = 80
y = 20
Loss = cost price - selling price
= 5y-4y
= y
= ₹20
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