The store shipped 780 air conditioners, 120 less than five times the number of refrigerators. How many refrigerators did the store ship?
商店运来空调780台，比运来冰箱的5倍少120台，商店运来冰箱多少台？
<gadget id="calculator">780 + 120</gadget>
<output>900</output>

<gadget id="calculator">900 / 5</gadget>
<output>180</output>

<result>180</result>