When the local time in Athens is 0900 , the local time in Berlin is 0800 . A plane leaves Athens at 1315 . It arrives in Berlin at 1505 local time. The distance the plane flies from Athens to Berlin is $$$1802 \mathrm{~km}$$$. Calculate the average speed of the plane. Give your answer in kilometres per hour. .................................... $$$\mathrm{km} / \mathrm{h}$$$

Mathematics

IGCSE&ALevel

CAIE

Exam No：0580_w20_qp_41 Year：2020 Question No：2(c)(ii)

Answer:

636

E1.11.1 Demonstrate an understanding of ratio and proportion. (To include numerical problems involving direct and inverse proportion.)

E1.11.2 Increase and decrease a quantity by a given ratio.

E1.11.3 Calculate average speed. (Use ratio and scales in practical situations.)

E1.11.4 Use common measures of rate. (Formulae for other rates will be given in the question e.g. pressure and density.)