In order to hold a mathematics entertainment activity, the class committee prepared rich prizes for the students. I bought 25 prizes for 1.6 yuan, and 25 prizes for 2.5 yuan. How much did the buyer spend for the two prizes?
为了举行数学游艺活动，班委会为同学们准备了丰富的奖品．1.6元的奖品买了25份，2.5元的奖品也买了25份．买者两种奖品一共花去多少钱？
<gadget id="calculator">1.6 * 25</gadget>
<output>40</output>

<gadget id="calculator">2.5 * 25</gadget>
<output>62.5</output>

<gadget id="calculator">40 + 62.5</gadget>
<output>102.5</output>

<result>102.5</result>