Foundation
2nd February 1980
- 1Systematic Listing2 marks
Using only the digits 1, 4, 3 and no digit twice, how many different two-digit numbers can be made?
- 2Averages from Frequency Tables3 marks
In a survey 6 households own 1 car, 5 own 2 cars and 7 own 3 cars. Work out the mean number of cars, to 2 decimal places.
- 3Error Intervals2 marks
A number y is 37 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 12. 21 comes out. What went in?
- 5Scale Drawings2 marks
A map has a scale of 1 : 10000. Two villages are 8 cm apart on the map. How far apart are they in real life, in km?
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