2025 NJC P1 Q1
2025 NJC P1 Q1
4 marks
Paul is helping his friends to convert their foreign currencies back to Singapore Dollars. The amounts of foreign currencies converted, and the total amount received in Singapore Dollars are shown in the following table.
| Alex | Nicholas | Palmer | Maybelline | |
|---|---|---|---|---|
| US Dollar (USD) | \(150\) | \(250\) | \(425\) | \(a\) |
| Japanese Yen (JPY) | \(5500\) | \(9500\) | \(1000\) | \(0\) |
| Chinese Yuan (CNY) | \(1000\) | \(2200\) | \(2000\) | \(1200\) |
| Total amount: Singapore Dollars (SGD) | \(419.30\) | \(797.20\) | \(913.10\) | \(568.40\) |
However, he has forgotten the amount of US Dollar that Maybelline has passed to him. Assuming that, for each foreign currency, the exchange rate quoted for each of the friends is the same, calculate the value of \(a\).[4]
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Answer:a= 275
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