If in a stick of chalk, carbon is 3 g, what is the weight of the chalk stick?


Let us assume the weight of the stick be x g


Also, weight of carbon = 3 g


Therefore,


According to question:


12 % of x = 3


Hence,


× x = 3


x = 3 ×


= 25 g


Thus, the weight of chalk stick is 25 g


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