const randomNumbers = n => {
  let arr = [];
  for (let i = 0; i < n; i++) {
    arr.push(Math.trunc(Math.random() * 1000));
  }
  return arr;
};
var arr = randomNumbers(15);
console.log("EUR", arr);

const eurToUsd = 1.2;
arr = arr.map(that => Math.trunc(that * eurToUsd));
console.log("Konvertiert ins USD", arr);