4 kg of apples is 6.7 yuan more expensive than 5 kg of oranges. Apples are 4.8 yuan per kilogram, how much are oranges per kilogram? (solution by equation)
4千克苹果比5千克桔子贵6.7元．苹果每千克4.8元，桔子每千克多少元？(用方程解)
<gadget id="calculator">4 * 4.8</gadget>
<output>19.2</output>

<gadget id="calculator">19.2 - 6.7</gadget>
<output>12.5</output>

<gadget id="calculator">12.5 / 5</gadget>
<output>2.5</output>

<result>2.5</result>