Daily Practice

Higher

20th January 1982

5 questions · 13 marks · Grades 6-7 · 61 question types in this band

1
Speed and Density2 marks
A block has volume 100 cm^3 and density 8 g/cm^3. Work out its mass.
2
Vectors3 marks
a is the column vector (3, 3) and b is (5, 4). Work out 3a - 4b as a column vector.
3
Probability Trees3 marks
5 of 10 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 11, 12, 10, 5. Write down the cumulative frequency at the end of the third class.
5
Reverse Percentages3 marks
A bill is £576 including VAT at 20%. Work out the amount before VAT.

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