Daily Practice

Higher

8th May 1972

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

1
Probability Trees3 marks
4 of 6 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
2
Cumulative Frequency2 marks
A cumulative frequency graph is drawn for 80 values. What cumulative frequency do you read across from to estimate the lower quartile?
3
Bounds2 marks
A mass is 520 kg, correct to the nearest 10. Write down the upper bound.
4
Simultaneous Equations3 marks
3 teas and 2 cakes cost £8.50. 1 tea and 5 cakes cost £10.20. Find the price of a tea.
5
Repeated Percentage Change3 marks
A price rises by 25% and then falls by 20%. Work out the overall percentage change, to 2 decimal places.

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