A balance is a device which is used for measuring the weight of a person. On the weightage machine there are many scales, which shows the number.
To obtain an accurate weight measurement first we should balance the scale good before using it so the weights hang free. Move the weights on top bar first, until they hang freely i.e. Move weight on second bar and add the amounts on the two bars in order to determine the patient's weight. When on standing on the weightage machine we should stand straight and see forward in order to get correct reading of weight.
So we can conclude that A balance is a device which is used for measuring the weight of a person.
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