Higher Plus
10th August 1966
- 1Bounds3 marks
A rectangle is 5 cm by 20 cm, each correct to the nearest cm. Work out the upper bound of its area.
- 2Proof2 marks
In an algebraic proof, how would you write three consecutive integers in terms of an integer n?
- 3Direct and Inverse Proportion Depth3 marks
y is directly proportional to sqrt(x). When x = 4, y = 16. Work out y when x = 16.
- 4The Cosine Rule3 marks
A triangle has sides 6 cm, 6 cm and 6 cm. Work out the angle opposite the 6 cm side, to 1 decimal place.
- 5Probability Equation Questions3 marks
A bag holds 8 red and n blue counters. The probability of taking a red is 8/11. Work out n.
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