The Monkey King led a group of monkeys to pick peaches. After finishing work in the afternoon, the Monkey King began to distribute. If the big monkeys are divided into 5 and the small monkeys are divided into 3, the monkey king can keep 10. If the big and small monkeys are divided into 4, the monkey king can keep 20. In this group of monkeys, how many more big monkeys (not including the monkey king) than small monkeys.
猴王带领一群猴子去摘桃．下午收工后，猴王开始分配．若大猴分5个，小猴分3个，猴王可留10个．若大、小猴都分4个，猴王能留下20个．在这群猴子中，大猴(不包括猴王)比小猴多多少只．
<gadget id="calculator">20 - 10</gadget>
<output>10</output>

<gadget id="calculator">5 - 4</gadget>
<output>1</output>

<gadget id="calculator">10 / 1</gadget>
<output>10</output>

<result>10</result>