Junior Cert Maths Samples

_________________________________________ juniorcertsolutions.com ________________________________________ 2016 Question 2 – Higher Paper 1 Solution (a) (i) To write 20 cents as a fraction of €20, we must change both numbers to cents Or to euros first 20 cents = €0.2 euros or €20 = 2000 cents ∴ 0.2 1 20 100 = or 20 1 2000 100 = ( 5 marks ) (ii) Again change both numbers into the same units: 0.5 cm and 200 cm 0.5 100 1 200 1 400 × = ( 5 marks ) (b) (i) A costs €3.60 2 = €1.80/litre B costs €1.50 €2 0.75 = /litre Brand A is cheaper/litre ( 5 marks ) (ii) 3 boxes of A will cost €3.60 × 3 = €10.80 for 6 litres 1 box of A and 4 boxes of B will cost €3.60 + €6.00 = €9.60 for 5 litres 7 boxes of B will cost 7 × €1.50 = €10.50 for 5.25 litres 2 × brand A + 2 brand B = €7.20 + €3.00 = €10.20 for 5.5. litres The lowest price for at least 5 litres is €9.60 ( 5 marks ) Comment: Daft question.