JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://code.jquery.com/jquery-3.1.1.min.js"></script>
<div id="parent">
  <div class="first">
    <input value="25" type="checkbox" checked>
    <input value="50" type="checkbox" checked>
    <input value="100" type="checkbox">
    <input value="150" type="checkbox">
  </div>
  <div class="second">
    <input value="25" type="checkbox">
    <input value="50" type="checkbox">
    <input value="100" type="checkbox" checked>
    <input value="150" type="checkbox" checked>
  </div>
</div>

JavaScript

var list = {};
$('#parent>div').each(function(ii,div){
	list[$(div).attr('class')] = $.map($(div).find('input'),function(el){
  	if($(el).is(':checked')) return parseInt($(el).val());
  });
});
console.log(list);