Daily Practice

Higher

1st August 1983

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

1
Repeated Percentage Change3 marks
A price rises by 20% and then falls by 10%. Work out the overall percentage change, to 2 decimal places.
2
Sector Areas and Arc Lengths3 marks
A sector of a circle has radius 15 cm and angle 90°. Work out its area, to 1 decimal place.
3
Conditional Probability3 marks
7 students study Spanish and 3 of those also study Art. One Spanish student is picked at random. Work out the probability they study Art.
4
Cumulative Frequency2 marks
A cumulative frequency graph is drawn for 124 values. What cumulative frequency do you read across from to estimate the lower quartile?
5
Surds2 marks
Write sqrt(8) in the form a sqrt(b), where b is as small as possible.

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