Daily Practice

Foundation Plus

8th February 1975

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

1
Ratio2 marks
Red and blue raffle tickets are in the ratio 2 : 3. There are 20 red raffle tickets. How many raffle tickets are there altogether?
2
Angles in Polygons2 marks
A regular polygon has an exterior angle of 45°. How many sides does it have?
3
Probability Trees3 marks
2 of 5 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
4
Capture Recapture3 marks
35 fish are marked and released. Later 8 are caught, of which 2 are marked. Estimate the population.
5
Error Intervals2 marks
A number y is 89 when truncated to the nearest whole number. Write down the error interval for y.

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