Red Star Fruit Shop has 775 kg of apples and 400 kg of oranges. If there is one bag per 25 kg, how many more bags of apples than oranges?
红星水果店有775千克苹果，400千克桔子，如果每25千克装1袋，那么苹果比桔子多多少袋？
<gadget id="calculator">775 / 25</gadget>
<output>31</output>

<gadget id="calculator">400 / 25</gadget>
<output>16</output>

<gadget id="calculator">31 - 16</gadget>
<output>15</output>

<result>15</result>