Daily Practice

Higher Plus

22nd October 1989

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 x^3. When x = 4, y = 256. Work out y when x = 5.
2
Vectors Proof Questions3 marks
OACB is a parallelogram with vector OA = m and vector OB = p. M is the point dividing AB in the ratio 1 : 2. Write vector OM in terms of m and p.
3
Probability Equation Questions3 marks
The probability of winning a game is 7/10. A player expects 84 wins. How many games did they play?
4
Histograms3 marks
On a histogram the bar for 60 < x <= 80 has a frequency density of 1.2. How many values are in that class?
5
Bounds3 marks
x = 97 and y = 26, each correct to the nearest whole number. Work out the upper bound of x - y.

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