There are two piles of coal. (3/4) is removed from pile A, and (3/4) is removed from pile B. A total of 60 tons of coal are removed. How many tons are there in the original two piles of coal?
有两堆煤，甲堆中运走(3/4)，乙堆中也运走(3/4)，共运走60吨煤，原来两堆煤共多少吨．
<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">60 / (3/4)</gadget>
<output>80</output>

<result>80</result>