Two granaries A and B have a total of 480 tons of flour. After A granary delivers 60 tons of flour to B granary, the flour stored in B granary is still 20 tons less than that of A granary. How many tons of flour are stored in Granary B now?
甲、乙两个粮仓共有面粉480吨，甲粮仓运出60吨面粉给乙粮仓后，这时乙粮仓存放的面粉还比甲粮仓少20吨．现在乙粮仓存放了多少吨面粉？
<gadget id="calculator">60 * 2</gadget>
<output>120</output>

<gadget id="calculator">120 + 20</gadget>
<output>140</output>

<gadget id="calculator">480 - 140</gadget>
<output>340</output>

<gadget id="calculator">340 / 2</gadget>
<output>170</output>

<gadget id="calculator">170 + 60</gadget>
<output>230</output>

<result>230</result>