Daily Practice

Higher

15th January 1989

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

1
Probability Trees3 marks
3 of 6 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 9 and a maximum of 37. Work out the range.
3
Reverse Percentages3 marks
A bill is £888 including VAT at 20%. Work out the amount before VAT.
4
Simultaneous Equations3 marks
5 teas and 4 cakes cost £15.20. 4 teas and 5 cakes cost £14.95. Find the price of a tea.
5
Direct and Inverse Proportion3 marks
y is inversely proportional to x. When x = 4, y = 30. Work out y when x = 10.

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