Daily Practice · Higher Plus

Daily Practice - Higher Plus

12th April 1995

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 sqrt(x). When x = 36, y = 54. Work out y when x = 49.
2
The Cosine Rule3 marks
A triangle has sides of 8 cm and 15 cm with an angle of 38° between them. Work out the third side, to 1 decimal place.
3
Conditional Probability3 marks
A bag holds 6 red, 5 blue and 4 green counters. Two are taken without replacement. Given neither is green, what is the probability both are red?
4
Histograms3 marks
A histogram has four 20-wide classes from 0, with frequency densities 3, 0.5, 1, 2. Which class contains the median?
5
Bounds3 marks
A rectangle is 25 cm by 21 cm, each correct to the nearest cm. Work out the upper bound of its area.

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