O-LevelMathematicsNumber4024/22 · Oct/Nov 2017 · Q110 Marks
Sara buys a new car. The cash price of the car is $4500. She can pay for the car using option A or option B. Option A Pay 1/5 of the cash price then 12 monthly payments of $340 Option B Pay 12% of the cash price then 24 monthly payments of $195
- (a)Which option is cheaper and by how much?[4]
- (b)Sara's car uses 5.2 litres of petrol for each 100km she drives. Petrol costs $0.85 per litre. Sara drives 240 km. Calculate the cost of the petrol used for this journey. Give your answer correct to the nearest cent.[3]
- (c)Sara pays a total of $322 for her car insurance. This total is made up of a basic charge plus 15% sales tax. Calculate the amount of sales tax that Sara pays.[3]
Mark scheme
Marking points from the official mark scheme (Oct/Nov 2017). The mark or mark type is shown in brackets.
- [4] (a) A by 240
- B3 for 4980 and 5220 seen or difference = 240
- Or M1 for 4500 ÷ 5 and 12 × 340 ое
- and M1 for 0.12 × 4500 and 24 × 195 oе
- and M1 for the difference between their 5220 and their 4980
- [3] (b) 10.61 cao
- M2 for 240÷100 × 5.2 × 0.85 soi
- Or M1 for 240 ÷ 100 × 5.2 or their 12.48 × 0.85 or 5.2 × 0.85
- [3] (c) 42
- B2 for 280
- Or M1 for 1.15 x = 322 soi
- and M1 for 322 – their 280
Write your answer and get it marked
On Oracle Prep you can write or photograph your own answer and have it marked by AI against this mark scheme, with feedback on what you missed.
Sign up free →