Xiaohong loves to eat candy, her mother stipulates that she should eat 4 candies per day on average, and Xiaohong ate 5 candies per day on average in the first 10 days, then how many candies she should eat per day on average in the next 5 days to meet her mother’s requirement.
小红爱吃糖，妈妈规定平均每天吃4颗，小红前10天平均每天吃了5颗，那么后5天中平均每天吃多少颗才能达到妈妈的要求．
<gadget id="calculator">10 + 5</gadget>
<output>15</output>

<gadget id="calculator">15 * 4</gadget>
<output>60</output>

<gadget id="calculator">10 * 5</gadget>
<output>50</output>

<gadget id="calculator">60 - 50</gadget>
<output>10</output>

<gadget id="calculator">10 / 5</gadget>
<output>2</output>

<result>2</result>