Daily Practice · Higher

Daily Practice - Higher

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

21st April 2005

5 questions · 14 marks · Grades 6-7 · 61 question types in this band

1
Probability Trees3 marks
3 of 7 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
2
Histograms2 marks
A histogram class is 2 units wide and contains 5 values. Work out the frequency density.
3
Reverse Percentages3 marks
A bill is £936 including VAT at 20%. Work out the amount before VAT.
4
Equation of a Line3 marks
A line has gradient -5 and passes through (6, -39). Work out its equation.
5
Repeated Percentage Change3 marks
A town's population is 38000 and grows by 6% each year. Work out the population after 6 years, to the nearest whole number.

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