There are two glasses of salt water, A and B, with different salt contents. The weight of the A cup of salt water is 100 grams, and the weight of the B cup of salt water is 60 grams. Now pour the same amount of salt water from the two cups, and pour them into the two cups respectively. At this time, the salt content of the salt water is equal. How many grams of salt water are poured out of each cup?
有甲、乙两杯含盐量不同的盐水，甲杯盐水重100克，乙杯盐水重60克．现在从两杯中倒出等量的盐水，分别交换倒入两杯中，这时盐水的含盐量相等，从毎杯倒出盐水多少克？
<gadget id="calculator">5 + 3</gadget>
<output>8</output>

<gadget id="calculator">3 / 8</gadget>
<output>3/8 = around 0.375</output>

<gadget id="calculator">100 * (3/8)</gadget>
<output>75/2 = around 37.5</output>

<result>75/2 = around 37.5</result>