Daily Practice · Higher

Daily Practice - Higher

4th March 1992

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

1
Speed and Density2 marks
A block has volume 185 cm^3 and density 4 g/cm^3. Work out its mass.
2
Vectors3 marks
a is the column vector (-3, 0) and b is (3, -3). Work out 4a - 2b as a column vector.
3
Probability Trees3 marks
3 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, 10, 4, 3. Write down the cumulative frequency at the end of the third class.
5
Reverse Percentages3 marks
A bill is £672 including VAT at 20%. Work out the amount before VAT.

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