Daily Practice

Higher

15th January 1987

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

1
Histograms2 marks
A histogram class is 20 units wide and contains 60 values. Work out the frequency density.
2
The Product Rule for Counting3 marks
A code is 3 letters (A to Z) followed by 3 digits (0 to 9), and repeats are allowed. How many codes are possible?
3
Inequalities on Graphs2 marks
A region is defined by y < -2x + 9. Should the boundary line be solid or dashed, and why?
4
Repeated Percentage Change3 marks
A town's population is 30000 and grows by 3% each year. Work out the population after 5 years, to the nearest whole number.
5
Spheres and Cones3 marks
A cone has base radius 9 cm and vertical height 18 cm. Work out its volume, leaving your answer in terms of pi.

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