Daily Practice

Higher

11th January 1986

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 = 7.
2
Finding the Area of Any Triangle3 marks
A triangle has sides of 8 cm and 15 cm with an angle of 47° between them. Work out its area, to 1 decimal place.
3
Probability Trees3 marks
6 of 9 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 6, lower quartile 12, median 20, upper quartile 27 and maximum 35. Work out the interquartile range.
5
Reverse Percentages3 marks
A bill is £48 including VAT at 20%. Work out the amount before VAT.

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