I040s1 Interview Preparation: How would you weigh a plane without a scale? Sample 1 – Fresher

Interview Preparation: How would you weigh a plane without a scale? Sample 1 – Fresher

This is an interesting question and I do not know a straight away answer. I can try deducing it from some logic. One of the approaches could be summing up weight of all components. aluminium sheet, seats, engine weight etc. 

I will have to search these weights from internet. (but if I use internet you can directly search plane's weight)