The fruit shop brings in 250 kilograms of fruit, of which the mass of apples is 3/5, and the mass of bananas is 1/10 of apples. How many kilograms of bananas are there?
水果店运进水果250千克，其中苹果的质量是全部的(3/5)，香蕉的质量是苹果的(1/10)，香蕉有多少千克？
<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">1 / 10</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">250 * (3/5) * (1/10)</gadget>
<output>15</output>

<result>15</result>