Answer: The price elasticity is 0.5
Explanation: The price elasticity of demand is calculated as the percentage change in the quantity demanded divided by the percentage change in the price.
Therefore, we have:
Percentage change in price = 10% (0.1)
Percentage change in quantity demanded = 5% (0.05)
Price elasticity = 0.05/0.1
Price elasticity = 0.5