CSSA's answer to their 2023 Adv paper Q28b is wrong. They should have checked ln(16/9)-1 is negative and so the distance is ln(9/16)+1 (or written as ln(9/16) - -1 as question said to write it as ln(a/b)-c)There were no professors. Only 1 of them is a uni lecturer and he was not even the convenor. The other 4 are from high schools.
It s not impossible. Here are my solutions: https://4unitmaths.com/cssa2023adv-tywebb.pdf
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