Daily Practice

Higher

30th August 1986

5 questions · 14 marks · Grades 6-7 · 61 question types in this band

1
Box Plots2 marks
A box plot has minimum 14, lower quartile 23, median 26, upper quartile 31 and maximum 38. Work out the interquartile range.
2
Reverse Percentages3 marks
A bill is £552 including VAT at 20%. Work out the amount before VAT.
3
Expanding and Factorising Quadratics3 marks
Factorise x^2 - x - 30.
4
Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^2. When x = 3, y = 27. Work out y when x = 2.
5
The Sine Rule3 marks
In triangle ABC, angle A is 73°, angle B is 71° and side a is 12 cm. Use the sine rule to work out side b, to 1 decimal place.

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