The construction site transported 8,000 tons of materials, of which sand and gravel accounted for 75% of the total. How many tons of sand and gravel were transported?
建筑工地运来8000吨材料，其中沙石占总数的75%，运来沙石多少吨？
<gadget id="calculator">75 / 100</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">8_000 * (3/4)</gadget>
<output>6_000</output>

<result>6_000</result>