The total mass of a bottle and its contents of 20 identical tablets was 180 grams. When the bottle contained 15 tablets the total mass was 165 grams. What is the total of the bottle?
+37093 When you remove 5 tablets the mas changes by 180 - 165 = 15 grams 15 gm/5 tab = 3gm/tab (each tab weighs 3 gm)
when the bottle was full it had 20 tabs 20 tab x 3gm/tab = 60 gm so the difference between 180 gm and 60gm of tablets is the bottle mass 180 - 60 = 120 gm bottle mass.
