Daily Practice

Higher

23rd May 1991

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

1
Conditional Probability3 marks
17 students study Spanish and 7 of those also study Art. One Spanish student is picked at random. Work out the probability they study Art.
2
Histograms2 marks
A histogram class is 4 units wide and contains 10 values. Work out the frequency density.
3
Reverse Percentages3 marks
A bill is £648 including VAT at 20%. Work out the amount before VAT.
4
Quadratic Formula3 marks
Use the quadratic formula to solve x^2 + 4x + 1 = 0, to 2 decimal places.
5
Repeated Percentage Change3 marks
A town's population is 33000 and grows by 8% each year. Work out the population after 4 years, to the nearest whole number.

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