Higher Plus
15th February 1968
- 1Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^3. When x = 2, y = 24. Work out y when x = 3.
- 2Vectors Proof Questions3 marks
OACB is a parallelogram with vector OA = c and vector OB = p. P is the point dividing AB in the ratio 1 : 2. Write vector OP in terms of c and p.
- 3Probability Equation Questions3 marks
The probability of winning a game is 1/2. A player expects 65 wins. How many games did they play?
- 4Histograms3 marks
On a histogram the bar for 10 < x <= 20 has a frequency density of 1.2. How many values are in that class?
- 5Surds3 marks
Simplify sqrt(45) + sqrt(5), giving your answer in the form a sqrt(b).
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Any date always gives the same five questions, so a sheet can be set again or shared. All of February 1968, including the monthly compilation PDF.