In 2007, the state invested 1.92 billion yuan in the western region for the "returning grazing land to grassland" project in key counties. If the investment is divided into 4 quarters on average, each county invests 5 million yuan in one quarter on average. How many key counties are there in total? Get invested?
2007年国家向西部地区投资19.2亿元，用于重点县的"退牧还草"工程，如果平均分成4个季度投资，每个县平均1个季度投资0.05亿元，一共有多少个重点县获得投资？
<gadget id="calculator">19.2 / 4 / 0.05</gadget>
<output>96</output>

<result>96</result>