Tan Jia Hao's answer to huihuibuhui's Junior College 1 H1 Maths Singapore question.
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Hi, for 2nd method, the tourist has 2 options for each of the 5 coins, to give or not to give the coin. If the tourist does not give all 5 coins, there is no tipping, thus minus 1 at the end. Hope this helps :)
Date Posted:
3 years ago
Thank you so much :)
Thank you so much :)
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