Mavis travels from Singapore to Thailand. She exchanges \({750}\) Singapore Dollars (S\({\$}\)) to Thai Baht (THB) when the exchange rate is S\({\$1}\) = \({26}\) THB. While in Thailand, she spends \({14200}\) THB. On her return, she exchanges the remaining Thai Baht into Singapore Dollars when the exchange rate is S\({\$1}\) = \({26.5}\) THB.
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