Daily Practice

Higher

30th April 1972

5 questions · 14 marks · Grades 6-7 · 61 question types in this band

1
Direct and Inverse Proportion3 marks
y is inversely proportional to x. When x = 8, y = 20. Work out y when x = 5.
2
Vectors3 marks
a is the column vector (3, 1) and b is (4, 2). Work out 3a - 3b as a column vector.
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
Box Plots2 marks
A box plot has a minimum of 9 and a maximum of 41. Work out the range.
5
Standard Form3 marks
Work out (16 x 10^8) / (8 x 10^4). Give your answer in standard form.

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