The toy store sold 8 identical yo-yos for 45 yuan each, making a total of 160 yuan. How much is the purchase price of each yo-yo?
玩具店今天卖了8个同样的溜溜球，每个卖45元，共赚了160元．每个溜溜球的进货价是多少元？
<gadget id="calculator">160 / 8</gadget>
<output>20</output>

<gadget id="calculator">45 - 20</gadget>
<output>25</output>

<result>25</result>