Mom buys 3 kilograms of apples for 9.9 yuan, how much is the price per kilogram of apples?
妈妈用9.9元钱买了3千克苹果，每千克苹果售价多少元？
<gadget id="calculator">9.9 / 3</gadget>
<output>3.3</output>

<result>3.3</result>