Daily Practice · Higher

Daily Practice - Higher

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

9th January 2021

5 questions · 14 marks · Grades 6-7 · 61 question types in this band

1
Conditional Probability3 marks
24 students study Spanish and 5 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 minimum 11, lower quartile 16, median 25, upper quartile 34 and maximum 39. Work out the interquartile range.
3
Reverse Percentages3 marks
A bill is £144 including VAT at 20%. Work out the amount before VAT.
4
Solving Quadratics3 marks
Solve x^2 - x - 72 = 0.
5
Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^2. When x = 2, y = 16. Work out y when x = 4.

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