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Problem on molarity-normality-molality

Can someone please help me in getting through this problem. The solution ofAl2(SO4)3 d = 1.253gm/m comprise 22% salt by weight. The molarity, normality and molality of the solution is: (1) 0.805 M, 4.83 N, 0.825 M (2) 0.825 M, 48.3 N, 0.805 M (3) 4.83 M, 4.83 N, 4.83 M (4) None

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