Daily Practice

Higher

28th August 1985

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

1
Probability Trees3 marks
6 of 9 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 6, 5, 7, 7. Write down the cumulative frequency at the end of the third class.
3
Recurring Decimals to Fractions3 marks
Write the recurring decimal 0.777... as a fraction in its simplest form.
4
Factorising Harder Quadratics3 marks
Factorise 20x^2 - 9x + 1.
5
Speed and Density2 marks
A block has volume 130 cm^3 and density 3 g/cm^3. Work out its mass.

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