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Quiz

PISA – mathematical literacy: Quantity

10 PISA questions with solutions: exchange rates, earnings, percentages, combinations, comparing prices.

Type the number or choose the right answer. When you finish, click Check answers and see the solutions.

1. Mei-Ling from Singapore goes to South Africa as an exchange student and changes Singapore dollars (SGD) into South African rand (ZAR). The rate is 1 SGD = 4.2 ZAR. How many rand does she get for 3000 SGD?

2. Back home, Mei-Ling has 3900 ZAR and the rate is now 1 SGD = 4.0 ZAR. How many Singapore dollars does she get?

3. Is it better for Mei-Ling that the rate on her return is 4.0 instead of 4.2 ZAR for 1 SGD?

4. The Zedland Star pays 0.20 zeds per paper for the first 240 papers sold in a week and 0.40 zeds for each further paper. The Zedland Daily pays 60 zeds a week plus 0.05 zeds per paper. Stefan sells 350 copies of the Star a week. How many zeds does he earn?

5. Kristina sells the Zedland Daily and earned 74 zeds one week. How many papers did she sell?

6. Kristina pays 2.5% tax on the “Alpha” car costing 4800 zeds. How many zeds is the tax?

7. Kristina wants a car with at most 120 000 km, from 2000 or later, costing at most 4500 zeds. Alpha: 2003, 4800 zeds, 105 000 km; Bolte: 2000, 4450 zeds, 115 000 km; Castel: 2001, 4250 zeds, 128 000 km; Dezal: 1999, 3990 zeds, 109 000 km. Which one meets all the conditions?

8. In the shop: deck 40, 60 or 65 zeds; set of 4 wheels 14 or 36 zeds; set of 2 trucks 16 zeds (one kind only); hardware 10 or 20 zeds. What is the lowest price, in zeds, of a skateboard made of a deck, wheels, trucks and hardware?

9. With the same parts (3 decks, 2 sets of wheels, 1 kind of trucks, 2 sets of hardware), how many different skateboards can be made?

10. One bookcase needs 4 long boards, 6 short boards, 12 small clips, 2 large clips and 14 screws. The carpenter has 26 long and 33 short boards, 200 small clips, 20 large clips and 510 screws. How many bookcases can he make?