4MA0 Foundation June 2015 Paper 1 Q14
14 A ferry leaves Palermo at 7.45 pm and arrives in Salerno at 6.15 am the next day.
(a) Work out how long the ferry takes to go from Palermo to Salerno. (2)
Speed at sea is measured in knots.
1 knot = 1.852 kilometres per hour.
A ferry takes 12 hours to go from Trapani to Cagliari.
The ferry goes at an average speed of 16 knots.
(b) Work out the distance the ferry goes from Trapani to Cagliari.
Give your answer in kilometres correct to the nearest kilometre. (3)
Give your answer in kilometres correct to the nearest kilometre. (3)
| Scheme | Marks |
|---|---|
| \(10\tfrac{1}{2}\) hrs | B2 |
| (2) |
Notes
B2: B2 for \(10\tfrac{1}{2}\) hrs or 10.5 hrs or 630 minutes or 10h 30 min oe
(B1 for ‘correct time’ but units incorrect, partially correct or missing
Eg. \(10\tfrac{1}{2}\), 630, 10:30, 10:30 mins, 10.3, 10.3 hours)
| Scheme | Marks |
|---|---|
| 12 × 16 (= 192) or 16 × 1.852 (= 29.632) or 12 × 1.852 (= 22.224) | M1 |
| 192 × “1.852” or 12 × “29.632” or 16 × “22.224” | M1 |
| 356 | A1 |
| (3) | |
| Total 5 marks |
Notes
M1: M2 for 12 × 16 × 1.852
M1: dep
A1: answer in range 355 − 356