Lingyun Building sold a total of 16 boxes of apples in March, each weighing 25 kilograms, and each kilogram of apples was 4 yuan. How much was the total income?
凌云大厦三月份共卖出16箱苹果，每箱25千克，每千克苹果4元，一共收入多少元钱？
<gadget id="calculator">25 * 4 * 16</gadget>
<output>1_600</output>

<result>1_600</result>