Daily Practice · Higher

Daily Practice - Higher

Grades 6-7 - Higher-tier method and manipulation.

29th June 2011

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

1
Speed and Density2 marks
A block has volume 200 cm^3 and density 11 g/cm^3. Work out its mass.
2
Vectors3 marks
a is the column vector (6, -3) and b is (5, 4). Work out 3a - 2b as a column vector.
3
Probability Trees3 marks
2 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 7, 6, 5, 12. Write down the cumulative frequency at the end of the third class.
5
Recurring Decimals to Fractions3 marks
Write the recurring decimal 0.3939... as a fraction in its simplest form.

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