Daily Practice · Higher

Daily Practice - Higher

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

4th January 2014

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

1
Probability Trees3 marks
1 of 5 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 9, lower quartile 19, median 24, upper quartile 29 and maximum 38. Work out the interquartile range.
3
Standard Form3 marks
Work out (42 x 10^6) / (7 x 10^4). Give your answer in standard form.
4
Simultaneous Equations3 marks
3 teas and 4 cakes cost £10.10. 3 teas and 2 cakes cost £6.40. Find the price of a tea.
5
Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^2. When x = 6, y = 252. Work out y when x = 4.

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