Daily Practice - Higher
Grades 6-7 - Higher-tier method and manipulation.
28th January 2019
- 1The Product Rule for Counting2 marks
A meal deal has 4 mains, 7 sides and 4 drinks. How many different meals are possible?
- 2Quadratic Formula3 marks
Work out the discriminant of 2x^2 + x + 2 = 0 and say how many real solutions it has.
- 3Repeated Percentage Change3 marks
A price rises by 25% and then falls by 10%. Work out the overall percentage change, to 2 decimal places.
- 4Similar Shapes (Area and Volume)3 marks
Two similar shapes have lengths in the ratio 1 : 4. The smaller has an area of 29 cm^2. Work out the area of the larger.
- 5Conditional Probability3 marks
17 students study Spanish and 12 of those also study Art. One Spanish student is picked at random. Work out the probability they study Art.
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