The fruit shop brings in a batch of fruits, sells 15 boxes of 25 kilograms each, and there are 75 kilograms left. How many kilograms are there in this batch of fruits?
水果店运进一批水果，卖出15箱，每箱25千克，还剩75千克，这批水果一共有多少千克？
<gadget id="calculator">15 * 25</gadget>
<output>375</output>

<gadget id="calculator">375 + 75</gadget>
<output>450</output>

<result>450</result>