Daily Practice

Foundation Plus

22nd March 1991

5 questions · 12 marks · Grades 4-6 · 128 question types in this band

1
Scale Drawings2 marks
A map has a scale of 1 : 10000. Two villages are 14 cm apart on the map. How far apart are they in real life, in km?
2
Vectors2 marks
a is the column vector (-7, -1) and b is (0, 1). Work out a + b as a column vector.
3
Probability Trees3 marks
2 of 6 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
4
Frequency Trees3 marks
180 people were surveyed. 40 were adults, of whom 10 said yes. 60 of the children said yes. How many said yes altogether?
5
Error Intervals2 marks
A number y is 35 when truncated to the nearest whole number. Write down the error interval for y.

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