Daily Practice

Higher

18th August 1990

5 questions · 13 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 = 5, y = 75. Work out y when x = 2.
2
Finding the Area of Any Triangle3 marks
A triangle has sides of 16 cm and 13 cm with an angle of 99° between them. Work out its area, to 1 decimal place.
3
Probability Trees3 marks
2 of 6 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 1, lower quartile 8, median 13, upper quartile 18 and maximum 28. Work out the interquartile range.
5
Surds2 marks
Write sqrt(48) in the form a sqrt(b), where b is as small as possible.

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