поставив багаж на весы, я обнаружил

поставив багаж на весы, я обнаружила, что его вес был на 2 кг выше нормы, и мне пришлось внести плату за лишний вес

Результаты (английский) 1:

putting luggage on the scales, I discovered that his weight was on 2 kg above the norm, and I had to pay for excess weight

Результаты (английский) 2:

putting luggage on the scales, I found that his weight was 2 kg above the norm, and I had to pay for the extra weight

Результаты (английский) 3:

put luggage on the scale, i discovered that his weight was 2 kg above normal, and i had to pay for the overweight.