Daily Practice
Higher
← All tiers
16th December 1987
- 1Probability Trees3 marks
4 of 8 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
- 2Cumulative Frequency2 marks
Four classes in order have frequencies 8, 4, 6, 6. Write down the cumulative frequency at the end of the third class.
- 3Reverse Percentages3 marks
A bill is £552 including VAT at 20%. Work out the amount before VAT.
- 4Equation of a Line3 marks
A line has gradient -1 and passes through (3, -4). Work out its equation.
- 5Speed and Density2 marks
A block has volume 25 cm^3 and density 11 g/cm^3. Work out its mass.
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Any date always gives the same five questions, so a sheet can be set again or shared. All of December 1987, including the monthly compilation PDF.