Daily Practice

Higher

7th November 1970

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

1
Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^2. When x = 4, y = 144. Work out y when x = 6.
2
Spheres and Cones3 marks
A sphere has radius 6 cm. Work out its volume, leaving your answer in terms of pi.
3
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.
4
Box Plots2 marks
A box plot has minimum 8, lower quartile 18, median 25, upper quartile 34 and maximum 40. Work out the interquartile range.
5
Reverse Percentages3 marks
A bill is £480 including VAT at 20%. Work out the amount before VAT.

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