There is a batch of grain in the grain store. After transporting 24 tons, another 36 tons are transported in. At this time, the amount of stored grain is exactly 1.2 times of the original stored grain. How many tons of grain was originally stored in the grain store?
粮店有一批粮食，运走24吨后，又运进36吨，这时存粮数恰好是原存粮的1.2倍，粮店原有存粮多少吨？
<gadget id="calculator">36 - 24</gadget>
<output>12</output>

<gadget id="calculator">1.2 - 1</gadget>
<output>0.2</output>

<gadget id="calculator">12 / 0.2</gadget>
<output>60</output>

<result>60</result>