Daily Practice · Higher

Daily Practice - Higher

Grades 6-7 - Higher-tier method and manipulation.

8th August 2009

5 questions · 13 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 = 5, y = 75. Work out y when x = 3.
2
Sector Areas and Arc Lengths3 marks
A sector of a circle has radius 7 cm and angle 180°. Work out its area, to 1 decimal place.
3
Conditional Probability3 marks
32 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 3, lower quartile 9, median 19, upper quartile 22 and maximum 30. Work out the interquartile range.
5
Surds2 marks
Write sqrt(20) in the form a sqrt(b), where b is as small as possible.

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