Two buckets of water have the same number of liters. If 25 liters are poured out of the first bucket and 75 liters are poured out of the second bucket, then the remaining water in the first bucket is three times the water left in the second bucket. Two buckets How many liters of water did each have?
两桶水的升数一样多，如果从第一桶倒出25升，第二桶倒出75升，那么第一桶剩下的水是第二桶剩下的水的3倍，两桶原来各有水多少升？
<gadget id="calculator">75 - 25</gadget>
<output>50</output>

<gadget id="calculator">3 - 1</gadget>
<output>2</output>

<gadget id="calculator">50 / 2</gadget>
<output>25</output>

<gadget id="calculator">25 + 75</gadget>
<output>100</output>

<result>100</result>