Numeracy Foundation November 2019 Unit 1 Q7
7. Sound5 sells pairs of earphones and USB leads.
The Venn diagrams show the number of customers who visited the shop last Friday and last Saturday.
No customers visited the shop on both days.
No customers bought more than 1 pair of earphones and 1 USB lead.
Earphones sell for £15 and USB leads sell for £3.
(a) How much did Sound5 customers spend buying USB leads on Friday? [2]
(b)
Over the two days, how many customers did not buy either earphones or a USB lead?
Circle your answer. [1]
27 45 40 57 72
(c)
What fraction of Friday’s customers bought both earphones and a USB lead?
Circle your answer. [1]
\(\dfrac{1}{10}\) \(\dfrac{1}{4}\) \(\dfrac{10}{40}\) \(\dfrac{10}{67}\) \(\dfrac{40}{67}\)
| Scheme | Marks | Comments |
|---|---|---|
| (10 + 5) × 3 or 10 × 3 + 5 × 3 (£)45 | M1 A1 |
| Scheme | Marks | Comments |
|---|---|---|
| 72 | B1 | Allow unambiguous indication of both 27 and 45 |
| Scheme | Marks | Comments |
|---|---|---|
| \(\dfrac{10}{67}\) | B1 |