Daily Practice

Higher Plus

11th February 1987

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 = 384. Work out y when x = 5.
2
The Cosine Rule3 marks
A triangle has sides 8 cm, 13 cm and 9 cm. Work out the angle opposite the 8 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 0 < x <= 5 has a frequency density of 2.4. How many values are in that class?
5
Bounds3 marks
A rectangle is 28 cm by 17 cm, each correct to the nearest cm. Work out the upper bound of its area.

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