Xiaoyue bought a fountain pen with more than half of the money she brought for 1 yuan, and bought a box of yogurt for 2.5 yuan. At this time, there was 15 yuan left. How much money did Xiaoyue bring?
小悦用自己所带钱的一半多1元买了一枝钢笔，又花2.5元买了一盒酸奶，这时还剩15元．小悦原来带了多少钱？
<gadget id="calculator">1 + 2.5 + 15</gadget>
<output>18.5</output>

<gadget id="calculator">1 - 0.5</gadget>
<output>0.5</output>

<gadget id="calculator">18.5 / 0.5</gadget>
<output>37</output>

<result>37</result>