Date | May 2012 | Marks available | 3 | Reference code | 12M.1.sl.TZ1.8 |
Level | SL only | Paper | 1 | Time zone | TZ1 |
Command term | Calculate | Question number | 8 | Adapted from | N/A |
Question
Sasha travelled from the USA to Mexico and converted 650 US dollars (USD) to Mexican pesos (MXN). Her bank offered an exchange rate of 1 USD = 12.50 MXN.
Find the number of MXN that Sasha received.
Before her return to the USA, Sasha exchanged 2300 MXN back into USD. The bank charged a commission of 1 %. The exchange rate was still 1 USD = 12.50 MXN.
Write down the commission charged by the bank in MXN.
Before her return to the USA, Sasha exchanged 2300 MXN back into USD. The bank charged a commission of 1 %. The exchange rate was still 1 USD = 12.50 MXN.
Calculate the amount of USD that Sasha received after commission. Give your answer correct to the nearest USD.
Markscheme
650×12.50 (M1)
8125 (MXN) (A1) (C2)
Note: Accept 8130.
[2 marks]
23 (MXN) (A1) (C1)
[1 mark]
\(\frac{{2300 - their{\text{ }}23}}{{12.50}}\) (M1)
Note: Award (M1) for setting up the expression.
182.16 (USD) (A1)(ft)
Note: Follow through from their answer to part (b).
182 (USD) (A1)(ft) (C3)
Notes: Award final (A1) for their answer correct to the nearest USD.
[3 marks]
Examiners report
A lot of good work was seen in this question with many completely correct solutions. The two marks which were seen to be lost more often than others were the answer to part (b) where $1.84 was seen rather than the required answer of 23 MXN, and the final mark in part (c) where, in many cases, the answer was left as $ 182.16.
A lot of good work was seen in this question with many completely correct solutions. The two marks which were seen to be lost more often than others were the answer to part (b) where $1.84 was seen rather than the required answer of 23 MXN, and the final mark in part (c) where, in many cases, the answer was left as $ 182.16.
A lot of good work was seen in this question with many completely correct solutions. The two marks which were seen to be lost more often than others were the answer to part (b) where $1.84 was seen rather than the required answer of 23 MXN, and the final mark in part (c) where, in many cases, the answer was left as $ 182.16.