If the Price of Pizzas Has Risen from $4 to $5

question 72

Multiple Choice

If the price of pizzas has risen from $4 to $5 at the same time that the price of an hour of aerobics class has risen from $20 to $30, then

• A) pizzas have become relatively more expensive.
• B) aerobics classes have become relatively more expensive.
• C) the relative prices of pizzas and aerobics classes have remained constant.
• D) workers' real income must have decreased.

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The act of forming theories or conjecture without firm evidence.

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