Maths · Further ratio and growth
CrossoverIf a : b = 3 : 4 , b : c = 7 : 9, c : d = 5 : 7 Find a : d
Choose an answer — or press 1234
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Maths · Further ratio and growth
CrossoverIf a : b = 3 : 4 , b : c = 7 : 9, c : d = 5 : 7 Find a : d
Choose an answer — or press 1234