For a morning flight, the costs of tickets are in the ratio $$\[ \text { First Class : Premium : Economy }=14: 6: 5 \text {. } \]$$ The cost of a Premium ticket is $$$\$ 114$$$. Calculate the cost of a First Class ticket and the cost of an Economy ticket. First Class \$ ............................................ Economy $$$\$$$$ .............................................

Mathematics

IGCSE&ALevel

CAIE

Exam No：0580_w20_qp_41 Year：2020 Question No：2(b)(i)

Answer:

266 and 95

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.)