Daily Practice

Foundation Plus

14th April 1990

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

1
Ratio2 marks
Red and blue sweets are in the ratio 2 : 9. There are 20 red sweets. How many sweets are there altogether?
2
Angles in Polygons2 marks
A regular polygon has an exterior angle of 24°. How many sides does it have?
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
Capture Recapture3 marks
20 fish are marked and released. Later 44 are caught, of which 4 are marked. Estimate the population.
5
Error Intervals2 marks
A number y is 59 when truncated to the nearest whole number. Write down the error interval for y.

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