Daily Practice

Higher Plus

27th January 1967

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 = 192. Work out y when x = 2.
2
The Cosine Rule3 marks
A triangle has sides 4 cm, 8 cm and 7 cm. Work out the angle opposite the 4 cm side, to 1 decimal place.
3
Probability Equation Questions3 marks
A bag holds 3 red and n blue counters. The probability of taking a red is 3/10. Work out n.
4
Histograms3 marks
On a histogram the bar for 20 < x <= 25 has a frequency density of 1.5. How many values are in that class?
5
Surds3 marks
Rationalise the denominator of 25/sqrt(5), giving your answer in its simplest form.

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