Daily Practice · Higher

Daily Practice - Higher

7th December 1991

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

1
Probability Trees3 marks
8 of 10 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 minimum 11, lower quartile 16, median 20, upper quartile 27 and maximum 31. Work out the interquartile range.
3
Reverse Percentages3 marks
A bill is £504 including VAT at 20%. Work out the amount before VAT.
4
Simultaneous Equations3 marks
4 teas and 4 cakes cost £20.20. 4 teas and 3 cakes cost £17.30. Find the price of a tea.
5
Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^2. When x = 2, y = 20. Work out y when x = 3.

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