If an increase in the price of a product from $1 to $2 per unit leads to a decrease in the quantity demanded from 100 to 80 units, then the value of price elasticity of demand is
A)-1/3
B)-2 1/3
C)-1/4
D)-3
E)-2/3

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The Answer of If an increase in the price of a product from $1 to $2 per unit leads to a decrease in the quantity demanded from 100 to 80 units, then the value of price elasticity of demand is
A)-1/3
B)-2 1/3
C)-1/4
D)-3
E)-2/3

If an Increase in the Price of a Product from $1