Daily Practice · Higher

Daily Practice - Higher

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

31st January 2021

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

1
Direct and Inverse Proportion3 marks
y is inversely proportional to x. When x = 8, y = 12. Work out y when x = 2.
2
Vectors3 marks
a is the column vector (1, -5) and b is (1, -1). Work out 4a - 2b as a column vector.
3
Probability Trees3 marks
3 of 10 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
4
Box Plots2 marks
A box plot has a minimum of 20 and a maximum of 62. Work out the range.
5
Reverse Percentages3 marks
A bill is £48 including VAT at 20%. Work out the amount before VAT.

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