There are rice and flour of the same weight in the cafeteria. After eating 3/4 of the rice and 60 kg of flour, the weight of the remaining flour is three times that of the rice. May I ask how many kilograms of rice and flour are stored in the original?
食堂存有同样重量的大米和面粉，吃了大米的(3/4)和60千克面粉后，剩下的面粉重量是大米的3倍．请问原来存有大米和面粉各多少千克？
<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">(3/4) * 3</gadget>
<output>9/4 = around 2.25</output>

<gadget id="calculator">(9/4) - 3</gadget>
<output>-3/4 = around -0.75</output>

<gadget id="calculator">1 + (-3/4)</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">60 / (1/4)</gadget>
<output>240</output>

<result>240</result>