Daily Practice · Higher

Daily Practice - Higher

Grades 6-7 - Higher-tier method and manipulation.

3rd September 2017

5 questions · 13 marks · Grades 6-7 · 61 question types in this band

1
Conditional Probability3 marks
13 students study Spanish and 4 of those also study Art. One Spanish student is picked at random. Work out the probability they study Art.
2
Box Plots2 marks
A box plot has a minimum of 18 and a maximum of 72. Work out the range.
3
Surds2 marks
Write sqrt(75) in the form a sqrt(b), where b is as small as possible.
4
Quadratic Formula3 marks
Use the quadratic formula to solve 4x^2 - 10x - 10 = 0, to 2 decimal places.
5
Direct and Inverse Proportion3 marks
y is inversely proportional to x. When x = 7, y = 30. Work out y when x = 5.

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