Mathematics, 26.08.2019 17:30 crystaldewar55C

Can someone ? ? rucsac method
dan the detective looked for a number he found a two digit number less than 50 the sum of its digits was 12 their differences was 4 what number did dan find?
dan found a two digit odd number one of its digits was half the other the number was greater than 50 what number did dan find?

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Can someone ? ? rucsac method
dan the detective looked for a number he found a two digit nu...