Daily Practice

Higher

23rd September 1987

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

1
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.
2
Cumulative Frequency2 marks
Four classes in order have frequencies 5, 7, 9, 9. Write down the cumulative frequency at the end of the third class.
3
Fractional and Negative Indices2 marks
Write 5^-2 as a fraction.
4
Simultaneous Equations3 marks
4 teas and 1 cake cost £6.70. 3 teas and 3 cakes cost £10.65. Find the price of a tea.
5
Speed and Density2 marks
A block has volume 85 cm^3 and density 7.5 g/cm^3. Work out its mass.

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