The school cafeteria shipped 15 bags of rice and 15 bags of flour each. Each bag of rice was 50 kilograms, and each bag of flour was 25 kilograms. How many kilograms of rice and flour were shipped from the school cafeteria?
学校食堂运来大米和面粉各15袋，大米每袋50千克，面粉每袋25千克，学校食堂运来大米和面粉一共多少千克？
<gadget id="calculator">50 * 15</gadget>
<output>750</output>

<gadget id="calculator">25 * 15</gadget>
<output>375</output>

<gadget id="calculator">750 + 375</gadget>
<output>1_125</output>

<result>1_125</result>