Higher November 2022 Paper 6 Q16

OCRHigherCurrent spec5 marksCompound MeasuresUpper & Lower Bounds

16 A plane flies from London to Tokyo.
The distance is 9600 km, correct to the nearest 100 km.
The plane travels at an average speed of 820 km/h, correct to the nearest 10 km/h.

Calculate the shortest possible flight time of the plane.
Give your answer in hours and minutes, correct to the nearest minute.
You must show your working. [5]