Daily Practice · Higher

Daily Practice - Higher

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

12th March 2008

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

1
Probability Trees3 marks
7 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 7, 7, 6, 5. Write down the cumulative frequency at the end of the third class.
3
Reverse Percentages3 marks
A bill is £912 including VAT at 20%. Work out the amount before VAT.
4
Equation of a Line3 marks
A line has gradient -2 and passes through (6, -7). Work out its equation.
5
Speed and Density2 marks
A block has volume 55 cm^3 and density 2.5 g/cm^3. Work out its mass.

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