After the elder sister gave the younger sister 10.85 yuan, it was 2.75 more than the younger sister. How much more did the older sister have than the younger sister?
姐姐给妹妹10.85元之后，比妹妹多2.75，姐姐原来比妹妹多多少元？
<gadget id="calculator">10.85 * 2</gadget>
<output>21.7</output>

<gadget id="calculator">21.7 + 2.75</gadget>
<output>24.45</output>

<result>24.45</result>