Daily Practice

Higher

22nd October 1986

5 questions · 12 marks · Grades 6-7 · 61 question types in this band

1
Probability Trees3 marks
1 of 8 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
2
Cumulative Frequency2 marks
Four classes in order have frequencies 7, 12, 12, 11. Write down the cumulative frequency at the end of the third class.
3
Bounds2 marks
A mass is 590 kg, correct to the nearest 10. Write down the lower bound.
4
Simultaneous Equations3 marks
2 teas and 3 cakes cost £8.25. 1 tea and 2 cakes cost £5.10. Find the price of a tea.
5
Speed and Density2 marks
A block has volume 85 cm^3 and density 7.5 g/cm^3. Work out its mass.

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