Higher November 2019 Paper 6 Q12
12
(a) Arron ran a distance of 5 km at an average speed of 2.2 m / s.
How long did Arron run for?
Give your answer in minutes and seconds, to the nearest second. [4]
(b) Claudine cycled a distance of 53 km in 2.7 hours.
The distance is measured correct to the nearest km.
The time is given correct to 1 decimal place.
Calculate the lower and upper bounds of her average speed.
Give your answers correct to 2 decimal places. [6]
| Answer | Marks | Part marks and guidance | |
|---|---|---|---|
| 37 minutes 52 seconds to 37 minutes 53 seconds | 4 | B1 for 5000 or 0.0022 seen and M1 for figs 5 ÷ figs 22 oe soi by figs 2272 to 2273 and M1 for figs (2272 to 2273) ÷ 60 soi by figs 37[….] | |
| Answer | Marks | Part marks and guidance | |
|---|---|---|---|
| 19.09 20.19 | 6 | B5 for 19.09 to 19.1 and 20.18 to 20.2 as final answers OR B2 for 53.5, 52.5, 2.65 and 2.75 all seen or B1 for two of 53.5, 52.5, 2.65 or 2.75 seen and M2 for both 53.5 ÷ 2.65 and 52.5 ÷ 2.75 or M1 for (52.5 to 53.5) ÷ (2.65 to 2.75) and A1dep for 19.09 to 19.1 and 20.18 to 20.2 If 0 scored, allow SC3 for one answer either 19.09 to 19.1 or 20.18 to 20.2 | Allow 2.749[9…] for 2.75 or 53.49[9…] for 53.5 For M2 ignore other unnecessary divisions e.g. 53.5 ÷ 2.75 and 52.5 ÷ 2.65 Dep on M2 |