The construction site has 32.5 tons of cement, the weight of sand is 2.4 times that of cement, and the weight of gravel is 4 times that of sand. How many tons of stones are there?
工地有水泥32.5吨，沙子的重量是水泥的2.4倍，石子的重量是沙子的4倍．石子有多少吨？
<gadget id="calculator">32.5 * 2.4 * 4</gadget>
<output>312</output>

<result>312</result>