Daily Practice

Higher

17th December 1989

5 questions · 14 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
Box Plots2 marks
A box plot has a minimum of 5 and a maximum of 54. Work out the range.
3
The Product Rule for Counting3 marks
A code is 3 letters (A to Z) followed by 4 digits (0 to 9), and repeats are allowed. How many codes are possible?
4
Simultaneous Equations3 marks
5 teas and 1 cake cost £9.70. 2 teas and 2 cakes cost £9.40. Find the price of a tea.
5
Direct and Inverse Proportion3 marks
y is inversely proportional to x. When x = 3, y = 10. Work out y when x = 10.

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Any date always gives the same five questions, so a sheet can be set again or shared. All of December 1989, including the monthly compilation PDF.