Daily Practice · Higher

Daily Practice - Higher

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

19th February 2003

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

1
Probability Trees3 marks
1 of 8 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 11, 12, 8, 12. Write down the cumulative frequency at the end of the third class.
3
Reverse Percentages3 marks
A bill is £456 including VAT at 20%. Work out the amount before VAT.
4
Factorising Harder Quadratics3 marks
Factorise 6x^2 + 17x + 5.
5
Speed and Density2 marks
A block has volume 200 cm^3 and density 8 g/cm^3. Work out its mass.

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