JSFiddle - React, Tailwind, and code Playground

JavaScript

var number = prompt("Enter 1-100");
    number = Math.ceil(number / 25 );

switch(number) {
    case 1:
      document.body.innerHTML = "1-25";
      break;
    case 2:
      document.body.innerHTML = "26-50";
      break;
    case 3:
      document.body.innerHTML = "51-75";
      break;
    case 4:
      document.body.innerHTML = "76-100";
      break;
}