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Mathematics, 13.02.2021 14:20 carebear147
33. If a : b = 2:3, b: c = 4 : 5 and c: d = 6: 7, find : a:b:c:d.
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33. If a : b = 2:3, b: c = 4 : 5 and c: d = 6: 7, find : a:b:c:d....
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