Daily Practice · Higher

Daily Practice - Higher

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

15th September 2012

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

1
Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^2. When x = 2, y = 36. Work out y when x = 6.
2
Finding the Area of Any Triangle3 marks
A triangle has sides of 10 cm and 8 cm with an angle of 96° between them. Work out its area, to 1 decimal place.
3
Probability Trees3 marks
4 of 9 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 minimum 10, lower quartile 12, median 15, upper quartile 20 and maximum 28. Work out the interquartile range.
5
Bounds2 marks
A mass is 640 kg, correct to the nearest 10. Write down the lower bound.

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