The cafeteria brought a batch of rice, 650 kg had been eaten, and the remaining rice was 50 kg less than three times the amount eaten. How many kilograms is this batch of rice in total?
食堂运来了一批大米，已经吃掉了650千克，剩下的大米比吃掉的3倍少50千克．这批大米共有多少千克？
<gadget id="calculator">650 * 3</gadget>
<output>1_950</output>

<gadget id="calculator">1_950 - 50</gadget>
<output>1_900</output>

<gadget id="calculator">1_900 + 650</gadget>
<output>2_550</output>

<result>2_550</result>