Daily Practice

Higher

6th March 1991

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

1
Probability Trees3 marks
5 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 3, 4, 6, 10. Write down the cumulative frequency at the end of the third class.
3
Standard Form2 marks
Work out (7 x 10^7) x (7 x 10^2). Give your answer in standard form.
4
Factorising Harder Quadratics3 marks
Factorise 12x^2 + 35x + 25.
5
Speed and Density2 marks
A block has volume 80 cm^3 and density 11 g/cm^3. Work out its mass.

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