The exchange rate between non-fixed currencies continuously fluctuates. The following chart shows the exchange rate of the pound sterling to the Japanese yen over a period of six days.Day£:¥Monday1:148.176Tuesday1:144.209Wednesday1:149.890Thursday1:141.014Friday1:138.650Saturday1:143.007If Grace traded ¥34,712 for £242.73, on what day did she make her exchange?
Divide the ¥34,712 Grace exchanged by the £242.73 she received: ¥34,712 ÷ £242.73 ≈ ¥143.007 per pound. The chart lists that exchange rate on Saturday, so she made the exchange that day.
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