The sales volume of the supermarket in June was 30 million yuan, and the business tax of 1.5 million yuan was paid. What kind of business tax rate does the supermarket pay sales tax?
超市六月份营业额3000万元，缴纳了150万元的营业税．超市是按怎样的营业税率缴纳营业税的？
<gadget id="calculator">150 / 3_000</gadget>
<output>1/20 = around 0.05</output>

<result>1/20 = around 0.05</result>