Question

Girija has a 5 kg weight. how will she weight 15 kg of waste paper by using her balance twice?​

Answer 1

first Girija weight 5 kg of waste paper using the 5 kg weight . secondly the 5 kg weight along with the 5 kg weighted waste paper will work together as a 10kg weight and then she will use this 10 kg weight to weight another 10 kg Waste papers and finally she got it and she would be weighted 15 kg of waste papers easily.

in this case you can see that Gitija has used the 5 kg weight only twice