Daily Practice

Higher

15th June 1985

5 questions · 12 marks · Grades 6-7 · 61 question types in this band

1
Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^2. When x = 6, y = 144. Work out y when x = 9.
2
Perpendicular Lines and the equation of a tangent2 marks
A line has gradient 5. Work out the gradient of a line perpendicular to it.
3
Conditional Probability3 marks
19 students study Spanish and 12 of those also study Art. One Spanish student is picked at random. Work out the probability they study Art.
4
Box Plots2 marks
A box plot has minimum 15, lower quartile 20, median 30, upper quartile 34 and maximum 44. Work out the interquartile range.
5
Standard Form2 marks
Work out (8 x 10^4) x (5 x 10^3). Give your answer in standard form.

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