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log3 (q) x log3 (81) ÷ log3 (p) x 3q log3 (p) ÷ log3 (q)= 9
log3 (81) x 3q = 9
log3 (3⁴) x 3q = 9
4 x 3q = 9
q = 9/12
= 3/4
you have to make use of the property loga (b) = logc (b) / logc (a)
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