Foundation
5th September 1987
- 1Systematic Listing2 marks
Using only the digits 1, 9, 3 and no digit twice, how many different two-digit numbers can be made?
- 2Averages from Frequency Tables3 marks
In a survey 7 households own 1 car, 9 own 2 cars and 5 own 3 cars. Work out the mean number of cars, to 2 decimal places.
- 3Error Intervals2 marks
A number y is 42 when truncated to the nearest whole number. Write down the error interval for y.
- 4Function Machines2 marks
A function machine multiplies by 3 then subtracts 15. 12 comes out. What went in?
- 5Real Life and Distance Time Graphs2 marks
Aisha drives 160 km in 4 hours. Work out the average speed in km/h.
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Any date always gives the same five questions, so a sheet can be set again or shared. All of September 1987, including the monthly compilation PDF.