Daily Practice

Higher Plus

11th March 1968

5 questions · 14 marks · Grades 8-9 · 51 question types in this band

1
Vectors Proof Questions3 marks
In a vector proof you find that vector PQ = a - b and vector RS = 5a - 5b. What does this show about PQ and RS?
2
Probability Equation Questions3 marks
The probability of winning a game is 4/5. A player expects 120 wins. How many games did they play?
3
Histograms2 marks
On a histogram, a 10-wide bar and a 30-wide bar have the same frequency density of 3. How many more values are in the wider class?
4
Bounds3 marks
A block has mass 750 g (to the nearest 10 g) and volume 10 cm^3 (to the nearest cm^3). Work out the upper bound of its density, to 2 decimal places.
5
Factorising Harder Quadratics3 marks
Solve 8x^2 - 22x + 5 = 0.

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