Daily Practice · Foundation Plus

Daily Practice - Foundation Plus

Grades 4-6 - the Foundation / Higher crossover zone.

15th November 1997

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

1
Ratio2 marks
Red and blue marbles are in the ratio 7 : 9. There are 91 red marbles. How many marbles are there altogether?
2
Angles in Polygons2 marks
A regular polygon has an exterior angle of 18°. How many sides does it have?
3
Probability Trees3 marks
5 of 8 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
4
Capture Recapture3 marks
45 voles are marked and released. Later 20 are caught, of which 5 are marked. Estimate the population.
5
Error Intervals2 marks
A number y is 61 when truncated to the nearest whole number. Write down the error interval for y.

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