Daily Practice · Higher

Daily Practice - Higher

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

28th May 2017

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

1
Direct and Inverse Proportion3 marks
y is inversely proportional to x. When x = 3, y = 48. Work out y when x = 12.
2
Vectors3 marks
a is the column vector (1, 5) and b is (-6, -6). Work out 2a - 4b as a column vector.
3
Probability Trees3 marks
8 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 4 and a maximum of 35. Work out the range.
5
Bounds2 marks
A mass is 51 kg, correct to the nearest whole number. Write down the upper bound.

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