A and B are numbers not equal to zero. It is known that A/B=20. If A is enlarged by 5 times and B is reduced by 5 times, what is the quotient?
A和B是不等于零的数，已知A/B=20，如果A扩大5倍，B缩小5倍后，商是多少
<gadget id="calculator">500 / 1</gadget>
<output>500</output>

<result>500</result>