Foundation Plus
27th January 1964
- 1Probability Trees3 marks
A bag holds 3 red and 4 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 14, lower quartile 22, median 26, upper quartile 29 and maximum 35. Work out the interquartile range.
- 3Prime Factors, HCF and LCM3 marks
Write 54 as a product of its prime factors, using index form.
- 4Drawing Other Graphs: Cubic/Reciprocal2 marks
For the curve y = -18/x, work out y when x = -2, and write down the equation of its vertical asymptote.
- 5Repeated Percentage Change3 marks
A town's population is 20000 and grows by 3% each year. Work out the population after 5 years, to the nearest whole number.
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Any date always gives the same five questions, so a sheet can be set again or shared. All of January 1964, including the monthly compilation PDF.