text: /**
   * @param preferences - target student focus
   * @param knowsProgramming - if student can do programming and know basics
   * @param config - private student ability to perform for different focus modes
   * @returns number of weeks needed for finish education
   */
  module.exports = function getTimeForEducation(
      focus = 'family', 
      knowsProgramming = true,
      config = {family: 4}
      ) {
          if(knowsProgramming==true){
            return Math.ceil(800/config[focus]);
          }else{
            return Math.ceil(1300/config[focus]);
          }
    };
    