JSFiddle - React, Tailwind, and code Playground

HTML

<select id="fruit">
  <option value="1" id="orange">апельсин</option>
  <option value="2" id="limon">лимон</option>
</select>
<br/>
<table border="1" class="m">
  <tr>
    <td width="50px">Вес</td>
    <td width="50px"> Цена</td>
  </tr>
  <tr>
    <td id="vec" height="20px"></td>
    <td id="cena"></td>
  </tr>
</table>

CSS

.m {
  margin-top: 50px;
}

JavaScript

fruit.onchange = function(argument) {
  if (limon.selected) {
    vec.innerHTML = "20";
    cena.innerHTML = "40";
  };
  if (orange.selected) {
    vec.innerHTML = "60";
    cena.innerHTML = "80";
  };
}