Daily Practice

Higher

18th February 1981

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

1
Speed and Density2 marks
A block has volume 15 cm^3 and density 7.5 g/cm^3. Work out its mass.
2
Vectors3 marks
a is the column vector (3, -6) and b is (-4, 5). Work out 2a - 5b as a column vector.
3
Probability Trees3 marks
1 of 5 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 12, 3, 9, 3. Write down the cumulative frequency at the end of the third class.
5
Recurring Decimals to Fractions3 marks
Write the recurring decimal 0.6060... as a fraction in its simplest form.

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