19N.1.SL.TZ0.T_10

pestleMathematicsAISLPaper 119N· sl-2-2-functions-notation-domain-range-and-inverse-as-reflectionsource ↗

In this question, give your answers to the nearest whole number.

Criselda travelled to Kota Kinabalu in Malaysia. At the airport, she saw the following information at the Currency Exchange counter.

This means the Currency Exchange counter would buy $USD$ from a traveller and in exchange return $MYR$ at a rate of $1 USD = 4.25 MYR$ . There is no commission charged.

Criselda changed $460$ $SGD$ to $MYR$ .

Calculate the amount of $MYR$ that Criselda received.

[3]

While in Kota Kinabalu, Criselda spent $440 MYR$ . She returned to the Currency Exchange counter and changed the remainder of her $MYR$ into $USD$ .

Calculate the amount of $USD$ she received.

[3]

Markscheme / solution

$460 \times 3.07$ (A1)(M1)

Note: Award (A1) for selecting $3.07$ as the exchange rate, (M1) for multiplying $460$ by an exchange rate from the table.

$1412 (MYR)$ (A1) (C3)

Note: Do not award the final (A1) if the answer is to the wrong level of accuracy.

[3 marks]

$\frac{1412 - 440}{4.45}$ (M1)(M1)

Note: Award (M1) for their correct subtraction or for $972 (972.2)$ or their correct difference seen. Award (M1) for dividing by $4.45$ . Follow through from part (a).

$218 (USD)$ (A1)(ft) (C3)

Note: Do not award the final (A1) if the answer is to the wrong level of accuracy.

[3 marks]

Examiners’ report

[N/A]