Daily Practice

Foundation Plus

23rd January 1954

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

1
Ratio2 marks
Red and blue marbles are in the ratio 4 : 9. There are 56 red marbles. How many marbles are there altogether?
2
Vectors2 marks
a is the column vector (8, -1) and b is (8, 2). Work out a + b as a column vector.
3
Probability Trees3 marks
2 of 7 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
4
Two Way Tables3 marks
Of 63 students, 25 study French, 34 study German and 15 study both. How many study neither?
5
Error Intervals2 marks
A number y is 70 when truncated to the nearest whole number. Write down the error interval for y.

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