Daily Practice

Foundation Plus

14th March 1989

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

1
Writing and Simplifying Ratio2 marks
Write the ratio 3 : 15 in the form 1 : n.
2
Angles in Polygons2 marks
A regular polygon has an exterior angle of 36°. How many sides does it have?
3
Probability Trees3 marks
4 of 7 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
4
Capture Recapture3 marks
10 voles are marked and released. Later 30 are caught, of which 5 are marked. Estimate the population.
5
Error Intervals2 marks
A number y is 9 when truncated to the nearest whole number. Write down the error interval for y.

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