Higher Plus
26th July 1962
- 1Surds3 marks
Simplify sqrt(32) + sqrt(72), giving your answer in the form a sqrt(b).
- 2Proof3 marks
Prove that the sum of 3 consecutive integers is always a multiple of 3. State the simplified sum you would use.
- 3Direct and Inverse Proportion Depth3 marks
y is inversely proportional to x^2. When x = 2, y = 108. Work out y when x = 6.
- 4Vectors Proof Questions3 marks
OACB is a parallelogram with vector OA = p and vector OB = q. N is the point dividing AB in the ratio 2 : 1. Write vector ON in terms of p and q.
- 5Probability Equation Questions3 marks
The probability of winning a game is 1/4. A player expects 12 wins. How many games did they play?
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