Higher Plus
2nd March 1967
- 1Surds3 marks
Simplify sqrt(20) + sqrt(20), giving your answer in the form a sqrt(b).
- 2Proof2 marks
In an algebraic proof, how would you write the number two more than an even number in terms of an integer n?
- 3Direct and Inverse Proportion Depth3 marks
y is inversely proportional to x^2. When x = 3, y = 50. Work out y when x = 5.
- 4Vectors Proof Questions3 marks
OACB is a parallelogram with vector OA = a and vector OB = c. P is the point dividing AB in the ratio 1 : 3. Write vector OP in terms of a and c.
- 5Probability Equation Questions3 marks
The probability of winning a game is 1/5. A player expects 3 wins. How many games did they play?
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Any date always gives the same five questions, so a sheet can be set again or shared. All of March 1967, including the monthly compilation PDF.