There are 750 kilograms of apples and 400 kilograms of oranges in the fruit store. If every 50 kilograms is packed in one bag, how many more bags are packed in apples than oranges?
水果店有750千克苹果，400千克桔子，如果每50千克装1袋，那么苹果比桔子多装多少袋？
<gadget id="calculator">750 / 50</gadget>
<output>15</output>

<gadget id="calculator">400 / 50</gadget>
<output>8</output>

<gadget id="calculator">15 - 8</gadget>
<output>7</output>

<result>7</result>