Higher
2nd December 1988
- 1Direct and Inverse Proportion3 marks
y is directly proportional to x. When x = 7, y = 42. Work out y when x = 6.
- 2Finding the Area of Any Triangle3 marks
A triangle has sides of 7 cm and 10 cm with an angle of 155° between them. Work out its area, to 1 decimal place.
- 3Probability Trees3 marks
2 of 8 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
- 4Capture Recapture2 marks
A capture-recapture estimate is made of the beetle population of a woodland. State one assumption the method relies on.
- 5Reverse Percentages3 marks
A bill is £528 including VAT at 20%. Work out the amount before VAT.
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Any date always gives the same five questions, so a sheet can be set again or shared. All of December 1988, including the monthly compilation PDF.