Daily Practice · Higher

Daily Practice - Higher

13th April 1994

5 questions · 13 marks · Grades 6-7 · 61 question types in this band

1
Conditional Probability3 marks
25 students study Spanish and 9 of those also study Art. One Spanish student is picked at random. Work out the probability they study Art.
2
Cumulative Frequency2 marks
Four classes in order have frequencies 10, 6, 10, 11. Write down the cumulative frequency at the end of the third class.
3
Reverse Percentages3 marks
A bill is £144 including VAT at 20%. Work out the amount before VAT.
4
Quadratic Formula3 marks
Use the quadratic formula to solve 4x^2 + 9x - 8 = 0, to 2 decimal places.
5
Speed and Density2 marks
A block has volume 160 cm^3 and density 7.5 g/cm^3. Work out its mass.

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