2025 EOY Sec 1 AHS P1 Q8

2025 EOY Sec 1 AHS P1 Q8

IP 1
5 marks

Sarah was planning to buy some products online from either Korea or Japan. She did some research on the exchange rates. The exchange rates between Singapore dollars (SGD), Korean Won (KRW) and Japanese Yen (JPY) were \(1 \) SGD \(= 114.72 \) JPY and \(1\) KRW \(= 0.11\) JPY.

  1. Find the exchange rate between Singapore (SGD) and Korean Won (KRW).

    [2]
  2. A pack of masks was sold for \(9899\) KRW on Korean website and \(1284.86\) JPY on a Japanese website. If the order qualifies for free shipping, which one offered a better deal? Show your working clearly.

    [3]

Solution:

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Answer:(a) SGD \(1=\frac{11\,472}{11}\text{ KRW}\approx1042.91\text{ KRW}\). (b) The Korean website; \(1088.89<1284.86\) JPY.

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