Higher
17th August 1987
- 1The Sine Rule3 marks
In triangle ABC, angle A is 37°, angle B is 92° and side a is 19 cm. Use the sine rule to work out side b, to 1 decimal place.
- 2Venn Diagrams3 marks
In a Venn diagram, 3 are in A only, 3 in B only, 7 in both and 2 in neither. Work out the probability a random one is in both.
- 3Cumulative Frequency2 marks
A cumulative frequency graph is drawn for 152 values. What cumulative frequency do you read across from to estimate the lower quartile?
- 4Reverse Percentages3 marks
A bill is £456 including VAT at 20%. Work out the amount before VAT.
- 5Expanding and Factorising Quadratics3 marks
Factorise x^2 - 4x - 12.
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Any date always gives the same five questions, so a sheet can be set again or shared. All of August 1987, including the monthly compilation PDF.