Daily Practice

Higher

19th March 1980

5 questions · 12 marks · Grades 6-7 · 61 question types in this band

1
Speed and Density2 marks
A block has volume 35 cm^3 and density 4 g/cm^3. Work out its mass.
2
Vectors3 marks
a is the column vector (-6, 2) and b is (1, -2). Work out 2a - 2b as a column vector.
3
Probability Trees3 marks
5 of 7 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
4
Cumulative Frequency2 marks
Four classes in order have frequencies 5, 8, 10, 5. Write down the cumulative frequency at the end of the third class.
5
Standard Form2 marks
Work out (7 x 10^8) x (2 x 10^6). Give your answer in standard form.

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