5 strawberries can be exchanged for 2 peaches, and 3 peaches can be exchanged for 1 persimmon. How many strawberries can be exchanged for 2 persimmons?
5个草莓可以换2个桃子，3个桃子可以换1个柿子．2个柿子可以换多少个草莓．
<gadget id="calculator">5 / 2</gadget>
<output>5/2 = around 2.5</output>

<gadget id="calculator">3 * 2</gadget>
<output>6</output>

<gadget id="calculator">(5/2) * 6</gadget>
<output>15</output>

<result>15</result>