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Bunuel
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This is such a brutal question for time management because you need to manually perform long form multiplication xx*xx and long form division xx/x,xxx,xxx to get the answer.
If you miss simplifying the ratios to 9:8:12, you end up with an ugly fraction for Reena's share of profit (84/203). After 3 min I just had to guess.

This has such simple fundamentals, and it's easy with a calculator but brutal for me to get correct by hand <2min for a 600 difficulty question :x
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