Daily Practice

Higher Plus

15th October 1980

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

1
Direct and Inverse Proportion Depth3 marks
y is inversely proportional to x^2. When x = 3, y = 8. Work out y when x = 2.
2
The Cosine Rule3 marks
A triangle has sides 24 cm, 13 cm and 14 cm. Work out the angle opposite the 24 cm side, to 1 decimal place.
3
Probability Equation Questions3 marks
A bag holds 6 red and n blue counters. The probability of taking a red is 3/4. Work out n.
4
Histograms3 marks
A histogram has four 20-wide classes from 0, with frequency densities 2, 3, 1, 0.5. Which class contains the median?
5
Bounds3 marks
A rectangle is 8 cm by 28 cm, each correct to the nearest cm. Work out the upper bound of its area.

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