Daily Practice

Higher Plus

31st May 1989

5 questions · 15 marks · Grades 8-9 · 51 question types in this band

1
Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^3. When x = 4, y = 192. Work out y when x = 3.
2
The Cosine Rule3 marks
A triangle has sides 17 cm, 13 cm and 11 cm. Work out the angle opposite the 17 cm side, to 1 decimal place.
3
Probability Equation Questions3 marks
A bag holds 3 red and n blue counters. The probability of taking a red is 3/5. Work out n.
4
Histograms3 marks
On a histogram the bar for 40 < x <= 50 has a frequency density of 2.4. How many values are in that class?
5
Bounds3 marks
A rectangle is 23 cm by 29 cm, each correct to the nearest cm. Work out the upper bound of its area.

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