Daily Practice · Higher

Daily Practice - Higher

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

27th March 2011

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

1
Conditional Probability3 marks
20 students study Spanish and 11 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 3 and a maximum of 40. Work out the range.
3
Standard Form2 marks
Work out (9 x 10^3) x (6 x 10^-6). Give your answer in standard form.
4
Quadratic Formula3 marks
Use the quadratic formula to solve x^2 + 10x - 3 = 0, to 2 decimal places.
5
Direct and Inverse Proportion3 marks
y is inversely proportional to x. When x = 9, y = 72. Work out y when x = 12.

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