Daily Practice

Higher Plus

27th November 1970

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

1
Probability Equation Questions3 marks
A bag holds 8 red and n blue counters. The probability of taking a red is 8/13. Work out n.
2
Histograms3 marks
On a histogram the bar for 60 < x <= 70 has a frequency density of 1.5. How many values are in that class?
3
Surds3 marks
Rationalise the denominator of 60/sqrt(6), giving your answer in its simplest form.
4
Rearranging Harder Formulae3 marks
Make x the subject of 3x + 6 = y(x + 6).
5
Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^3. When x = 4, y = 128. Work out y when x = 5.

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