Daily Practice · Higher

Daily Practice - Higher

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

13th August 1997

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

1
Probability Trees3 marks
7 of 10 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, 9, 9, 4. Write down the cumulative frequency at the end of the third class.
3
Surds2 marks
Write sqrt(8) in the form a sqrt(b), where b is as small as possible.
4
Factorising Harder Quadratics3 marks
Factorise 12x^2 - 13x - 4.
5
Speed and Density2 marks
A block has volume 100 cm^3 and density 4 g/cm^3. Work out its mass.

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