Symbol | Explanation |
M | Method |
M/A | Method with accuracy |
MCA | Method with consistent accuracy |
CA | Consistent accuracy |
A | Accuracy |
C | Conversion |
S | Simplification |
RT/RG/RM | Reading from a table OR Reading from a graph OR Read from map |
F | Choosing the correct formula |
SF | Substitution in a formula |
J | Justification |
P | Penalty, e.g. for no units, incorrect rounding off etc. |
R | Rounding Off OR Reason |
AO | Answer only |
NPR | No penalty for rounding |
MARKING GUIDELINES
NOTE:
QUESTION 1 [37] | |||
Ques. | Solution | Explanation | Topic & Level |
1.1.1 | Interest Amount = R749 299,39 × 0,8125% ✔ A ✔RT✔ M OR Interest Amount = R749 299,39 × 0,008125 ✔A ✔RT ✔ M | 1RT Correct opening balance | L2 |
1.1.2 | Monthly repayment = 750 000 × 8,59 ✔RT OR Monthly repayment = 750 000 × 8,59 ✔RT ✔RT | 1RT Home loan | L2 |
1.1.3 | Closing balance for Month 3 ✔A = R749 299,39 + R6 088,06 – R6 442,50 ✔A = R748 944,95 | 1A Add and Subtract | L2 F |
1.1.4 | Statement not valid ✔R✔R The shorter the loan period, the higher the loan factor ✔R ✔R No ✔A ✔R ✔R | 1A Not valid | L4 F |
1.1.5 | Amount at 119 months = R6 442,50 × 119 ✔CA | 1MA Multiplying correct values | L4 F |
1.1.6 | It will reduce the interest amount. | 2A Explanation (2) | L4 F |
1.2.1 | Volume = 2 m × 2 m × 0,3 m ✔C | 1SF Substitution | M L2 |
1.2.2 | Bags of cement = 1,2 ✔M OR 0,26 = 2 bags ✔M ✔M | CA from 1.2.1 1M Ratio concept 1M Multiply by 2 | M L3 |
1.2.3 | Litres of paint needed = 15 × 1,08 OR Litres of paint needed = 15 × 108% | 1MA Increased surface area 1CA Total number of litres 1MA Increased surface area | M L3 |
1.3.1 | Price for 2015 = 1 251 158,39 + (1 251 158,39 × 0,05) ✔MA Price for 2016 = 1 313 716,31 + (1 313 716,31 × 0,04) OR Price from 2015 – 2016 = 1 251 158,39 × 1,05 × 1,04 ✔M ✔M✔S | 1MA Increase by 5% | L3 F |
1.3.2 | ✔RG | 1RG Subtract correct values | L3 F |
[39] |
QUESTION 2 [36] | |||
Ques. | Solution | Explanation | Topic and Level |
2.1.1 | Taxable Income = Gross Annual salary – Pension | 1M Subtract 7,5% | L2 F |
2.1.2 | Annual Tax ✔A | CA from 2.1.1 | L4 F |
2.2.1 | Probability other than African = 8,8% + 9,5% + 2,4% OR Probability other than African = 100% – 79,3% ✔M | 1MA Adding correct values | L2 P |
2.2.2 | African % = 100% – 8,8% – 9,5% – 2,4% ✔MA OR 37 001 380 African Population in 1911 = 67,3% × 5 972 757 ✔CA | 1MA Subtract from 100 | L3 D |
2.2.3 | 1911 = 0,08 × 5 972 757 ✔CA | 1MA % for 1911 | L2 D |
2.2.4 | Percentage of the African race group increased | 1A African increase | L4 |
2.3.1 | Number of people = (25 × 2) + 17 | 1MA × 2 and addition | L2 D |
2.3.2 | Cost for Option 1 = 1 500 + (250 × 67) | CA from 2.3.1 | L4 F |
[36] |
QUESTION 3 [39] | |||
Ques. | Solution | Explanation | Topic and Level |
3.1.1 | North West OR West of North ✔✔A | 2A Direction (2) | M&PL2 |
3.1.2 | Scale: 3,8 cm = 20 miles ✔A | 1A Measure scale | M&PL3 |
3.1.3 | 3,8 cm = 20 miles | CA from 3.1.2 | M L3 |
3.1.4 | Noise pollution OR Air pollution ✔✔R OR Danger ✔✔R OR Length of runways ✔✔R | 2R Reason (2) | M&PL4 |
3.1.5 | A 61 | 2A Road (2) | M&PL2 |
3.1.6 | Distance = Speed × Time OR Time = Distance ✔M | 1SF Substitution | M L4 |
3.2.1 | Range = Highest – Lowest | 1M Concept of range | D L2 |
3.2.2 (a) Mistakes: | 1A Mistake 1 | D L3 | |
3.2.2 (b) Correction: ✔M | 1M Arrange data ascending or descending | D L3 | |
3.2.3 | June, July and August ✔A | 1A Correct months | D L4 |
3.2.4 | Probability = 5 ✔A | CA from 3.2.1 | P L2 |
3.2.5 | CA from 3.2.1 | D L2 | |
[39] |
QUESTION 4 [38] | |||
Ques. | Solution | Explanation | Topic and Level |
4.1.1 | Area of unshaded part OR Area of rectangle = Length × Width | 1SF Correct values for rectangle OR 1SF Correct values for rectangle | M L3 |
4.1.2 | To glue the seams together OR To paste sides together✔✔R | 2R Reason (2) | M L4 |
4.1.3 | Diagram T – A ring should be attached to the wide side of the ✔A hot air balloon | 1A Explain | M&P L2 |
4.1.4 | To blow hot air in balloon | 2R Reason (2) | M&P L4 |
4.2.1 | When the temperature increases, the lift of the hot air balloon is higher. ✔✔A ✔✔A OR When the temperature decreases, the lift of the hot air balloon is lower. ✔✔A ✔✔A | 2A Temperature increases | M&P L4 |
4.2.2 | Air Density of Hot air balloon B = 0,972+0,946 | 1MA Concept of average | M L4 |
4.2.3 | Probability = 33+12 ✔A | 1A Numerator | P L2 |
4.3 | Accommodation = 1 030 × 4 nights × 4 people ✔A | 1A 4 nights × 4 | F L3 |
[39] | |||
TOTAL: | 150 |