If the compound ratio of 7:5 and 8:x is 84:60.findx.
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Answer:
7:5::8:x = 84:60
7x8÷ 5 x X = 86÷60
56/5x = 84/60 = 7/5
x =. (56x5) ÷ 7x5 = 56/7 = 8
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