Daily Practice · Higher

Daily Practice - Higher

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

15th November 2018

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

1
Probability Trees3 marks
2 of 5 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 20 units wide and contains 30 values. Work out the frequency density.
3
The Product Rule for Counting3 marks
A code is 2 letters (A to Z) followed by 2 digits (0 to 9), and repeats are allowed. How many codes are possible?
4
Simultaneous Equations3 marks
2 teas and 2 cakes cost £5.20. 3 teas and 4 cakes cost £9.05. Find the price of a tea.
5
Repeated Percentage Change3 marks
A town's population is 7500 and grows by 4% each year. Work out the population after 6 years, to the nearest whole number.

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