A number of children lined up, starting from the first person on the left, every 2 people were given an apple, and starting from the first person on the right, every 4 people were given an orange, and as a result, 10 people got two kinds of fruits, then this group of children How many people are there at least.
若干名小朋友排成一行，从左边第一人开始每隔2人发一个苹果，从右边第一个人开始每隔4人发一个橘子，结果有10人拿到了两种水果，那么这群小朋友最少有多少人．
<gadget id="calculator">15 * 10</gadget>
<output>150</output>

<gadget id="calculator">150 + 3 + 5</gadget>
<output>158</output>

<result>158</result>