The capacity of the water in the glass is multiplied by 6, plus 50mL, it is the same as the capacity of the water in the bottle. There is 0.59L of water in the bottle. How much water is in the glass?
水杯里水的容量乘6，再加上50mL，就和瓶里水的容量一样多，瓶里有水0.59L，水杯里有多少水？
<gadget id="calculator">590 - 50</gadget>
<output>540</output>

<gadget id="calculator">540 / 6</gadget>
<output>90</output>

<result>90</result>