Solution
7x = 8k
x = 8k/7
and 5y = 6k
y = 6k/5
x : y = $$\frac{8k}{7} : \frac{6k}{5} = 20 : 21
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7x = 8k
x = 8k/7
and 5y = 6k
y = 6k/5
x : y = $$\frac{8k}{7} : \frac{6k}{5} = 20 : 21
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