Numeracy Intermediate November 2019 Unit 1 Q9
9.
(a) Waldo doesn’t mind which type of pasta he buys.
In the supermarket, Waldo sees the three packets of pasta shown below.
| Strozzapreti pasta 500g for £1.25 | Fusilli pasta 400g for 96p | Rigatoni pasta 250g for 65p |
Which pasta offers Waldo the best value for money?
You must show all your working. [3]
(b) An old recipe is given below.
Arrabiata pasta sauce 1 onion |
(i) How many chillies would be needed to make Arrabiata pasta sauce for 48 people? [2]
(ii) How many kilograms of tinned tomatoes are needed to make Arrabiata pasta sauce to serve 20 people? [3]
(c) A pasta factory in Italy produces 5 km of spaghetti per day.
How many centimetres of spaghetti will this factory produce in 7 days?
Give your answer in standard form. [3]
How many centimetres of spaghetti will this factory produce in 7 days?
Give your answer in standard form. [3]
| Scheme | Marks | Comments | ||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Method of comparison, e.g.
| M1 | Needs to show attempt to compare at least 2 of the 3, e.g. comparing 500g Allow for sight of 2 × (0.)65 | ||||||||||||||||||||||||||||||||
| Correctly evaluated comparison for 2 of the 3 sizes | A1 | Allow for sight of (£)1.3(0) or 130(p) Ignore incorrect units
| ||||||||||||||||||||||||||||||||
| Correctly evaluated comparison for all sizes, may be different methods for different stages, AND conclusion ‘(400g) Fusilli is best value for money’ | A1 | Consistent units that are not obviously incorrect are required, or allow no units given Examples:
|
| Scheme | Marks | Comments |
|---|---|---|
| (i) 3 × 48 ÷ 4 | M1 | |
| 36 (chillies) | A1 | |
| (ii) 0.88 (× 2) × 20 ÷ 4 | M1 | M marks can be awarded in either order (= (2 ×) 4.4 ) Or equivalent full method that could lead to a correct answer (Note: 2 × 0.88 × 20 ÷ 4 = 2 × 4.4 or 5 × 1.76) |
| ÷ 2.2 | M1 | |
| 4 (kg) | A1 | CAO If no marks, award SC1 for sight of (2 × 0.88 =) 1.76 (lbs) |
| Scheme | Marks | Comments |
|---|---|---|
| Conversion to cm, e.g. 5 × 1000 × 100 (× 7) | M1 | ( = 500 000 (× 7)) |
| 3.5 × 106 (cm) | A2 | A1 for any one of the following:
|