Foundation Plus
16th July 1976
- 1Probability Trees3 marks
A bag holds 3 red and 8 blue counters. One is taken, replaced, then another is taken. Work out the probability both are red.
- 2Box Plots2 marks
A box plot has minimum 6, lower quartile 8, median 11, upper quartile 21 and maximum 27. Work out the interquartile range.
- 3Prime Factors, HCF and LCM3 marks
Write 120 as a product of its prime factors, using index form.
- 4Drawing Other Graphs: Cubic/Reciprocal2 marks
For the curve y = 4/x, work out y when x = 4, and write down the equation of its vertical asymptote.
- 5Proportion2 marks
6 identical cupcakes cost £8.40. Work out the cost of 5 of the same cupcakes.
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Any date always gives the same five questions, so a sheet can be set again or shared. All of July 1976, including the monthly compilation PDF.