Daily Practice · Higher

Daily Practice - Higher

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

28th July 2007

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

1
Probability Trees3 marks
4 of 9 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 13, lower quartile 23, median 32, upper quartile 37 and maximum 42. Work out the interquartile range.
3
The Product Rule for Counting2 marks
A meal deal has 6 mains, 7 sides and 6 drinks. How many different meals are possible?
4
Simultaneous Equations3 marks
2 teas and 1 cake cost £4.75. 4 teas and 5 cakes cost £18.95. Find the price of a tea.
5
Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^2. When x = 4, y = 80. Work out y when x = 7.

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