Daily Practice

Foundation Plus

2nd August 1969

5 questions · 11 marks · Grades 4-6 · 128 question types in this band

1
Ratio2 marks
Red and blue marbles are in the ratio 5 : 6. There are 15 red marbles. How many marbles are there altogether?
2
Angles in Polygons2 marks
A regular polygon has an exterior angle of 40°. How many sides does it have?
3
Probability Trees3 marks
6 of 8 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
4
Averages from Frequency Tables2 marks
Grouped data has five classes of width 5, the first being 10 < x <= 15. The frequencies in order are 21, 3, 7, 11, 16. Write down the modal class.
5
Error Intervals2 marks
A number y is 10 when truncated to the nearest whole number. Write down the error interval for y.

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