Foundation June 2021 Paper 2 Q14
14
(a) Work out 39% of 450 (2)
(b) Write one pair of brackets in this calculation so that the answer is correct.
\(9 \times 8 - 5 - 2 = 25\) (1)
\(9 \times 8 - 5 - 2 = 25\) (1)
(c) Work out the value of \(\quad \dfrac{\sqrt{8.9}}{6.2 - 3.5}\)
Give your answer as a decimal.
Write down all the figures on your calculator display. (2)
Give your answer as a decimal.
Write down all the figures on your calculator display. (2)
| Scheme | Marks |
|---|---|
\(0.39 \times 450\) or \(\dfrac{39}{100} \times 450\) or \(\dfrac{450}{100} \times 39\) oe eg \(3 \times 45 + 9 \times 4.5\) oe | M1 |
| Working not required, so correct answer scores full marks (unless from obvious incorrect working) Answer: 175.5 | A1 |
| (2) |
| Scheme | Marks |
|---|---|
| Brackets around (8 − 5) | B1 |
| (1) |
Notes
B1: \(9 \times (8 - 5) - 2 = 25\) with no incorrect brackets,
condone eg \((9 \times (8 - 5)) - 2 = 25\) which has extra brackets that are not incorrect
| Scheme | Marks |
|---|---|
| 1.1049(21029) | B2 |
| (2) | |
| (5 marks) |
Notes
B2: for 1.1049(21029) ie 5 sf or better truncated or rounded
(B1 for 2.98... or 2.7)