The weight of a bag of melon seeds is (1/20) kg, how much does 15 bags of such melon seeds weigh in kilograms?
一袋瓜子的重量是(1/20)千克，15袋这样的瓜子重多少千克．
<gadget id="calculator">1 / 20</gadget>
<output>1/20 = around 0.05</output>

<gadget id="calculator">(1/20) * 15</gadget>
<output>3/4 = around 0.75</output>

<result>3/4 = around 0.75</result>