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Convert 10 OSY (ounces per square yard) into GSM (grams per square meter).
It means weight of one yard square is 10 ounces or
Weight of one square yard is 280 grams (one ounce is equal to 28 grams) or
Weight of one 0.836 meter square (one yard square is 0.836 meter square) is 280 grams or
Weight of one meter square = 280* 1
Answer = 344.9 grams per meter square