Higher November 2020 Paper 4 Q11
11
(a) The length, \(d\), of Jamal’s car is 4.72 m, correct to 2 decimal places.
Complete the error interval for the length, \(d\).
.................... \(\leqslant d \lt\) .................... [2]
(b) Jamal travels 430 km, correct to the nearest 10 km.
His average speed is 57.3 km / h, correct to 1 decimal place.
His average speed is 57.3 km / h, correct to 1 decimal place.
Calculate the shortest possible time for Jamal’s journey.
Give your answer correct to the nearest minute. [5]
| Answer | Marks | Part marks and guidance | |
|---|---|---|---|
| 4.715 4.725 | 2 | B1 for each or both correct and reversed | |
| Answer | Marks | Part marks and guidance | |
|---|---|---|---|
| 7 25 | 5 | B4 for 7.41[0...] or 7.411 OR B1 for 425 used B1 for 57.35 or 57.349[9...] used If B0 then B1 for 425 and 57.35 seen AND M2 for 425 ÷ 57.35 or M1 for use of distance ÷ speed e.g 430 ÷ 57.3 If 4 or 5 not scored SC1 for correctly changing their part hour to minutes | Condone use of 57.349[9...] for M2 and for M1 420 ≤ distance ≤ 440 and 56 ≤ speed ≤ 58 |