Daily Practice

Higher Plus

27th October 1953

5 questions · 15 marks · Grades 8-9 · 51 question types in this band

1
Probability Equation Questions3 marks
A bag holds 3 red and n blue counters. The probability of taking a red is 1/3. Work out n.
2
Histograms3 marks
On a histogram the bar for 60 < x <= 65 has a frequency density of 1.5. How many values are in that class?
3
Surds3 marks
Expand and simplify (8 + sqrt(10))(8 - sqrt(10)).
4
Completing the Square3 marks
Work out the coordinates of the turning point of y = x^2 - 10x + 6.
5
Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^3. When x = 2, y = 32. Work out y when x = 4.

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