Daily Practice · Higher

Daily Practice - Higher

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

27th January 2005

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

1
Probability Trees3 marks
3 of 10 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 5 units wide and contains 7.5 values. Work out the frequency density.
3
Fractional and Negative Indices2 marks
Write 9^-3 as a fraction.
4
Simultaneous Equations3 marks
3 teas and 2 cakes cost £7.65. 4 teas and 4 cakes cost £13.20. Find the price of a tea.
5
Repeated Percentage Change3 marks
A town's population is 10000 and grows by 8% each year. Work out the population after 3 years, to the nearest whole number.

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