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The ratio in which two sugar solutions of the concentration 25% and 45% are to be mixed to get a solution of concentration 30% is
1998 05ebb6f97c1aae5429b38e65bThe greatest number that divides 411, 684, 821 and leaves 3, 4 and 5 as remainders, respectively, is
1998 05f0823d3bc929f40b0baf96b