chalk contains ,carbon,oxygen in the ratio 3:10:12 find the percentage of the calcium.
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percantage of carbon = 3/25*100=12 percent
percent of oxygen =10/25*100=40 percent
percent of calcium = 12/25*100=48 percent
sum of ratios = 3+10+12=25
according to question each ratio upon sum of ration into 100
percent of oxygen =10/25*100=40 percent
percent of calcium = 12/25*100=48 percent
sum of ratios = 3+10+12=25
according to question each ratio upon sum of ration into 100
yug12:
is it right
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