Daily Practice - Higher
Grades 6-7 - Higher-tier method and manipulation.
7th August 2000
- 1Repeated Percentage Change3 marks
A price rises by 15% and then falls by 15%. Work out the overall percentage change, to 2 decimal places.
- 2Congruent Triangles2 marks
Two triangles are known to be congruent because two pairs of sides and the angle between them are equal. Which congruence condition is this?
- 3Conditional Probability3 marks
30 students study Spanish and 12 of those also study Art. One Spanish student is picked at random. Work out the probability they study Art.
- 4Cumulative Frequency2 marks
A cumulative frequency graph is drawn for 64 values. What cumulative frequency do you read across from to estimate the lower quartile?
- 5Bounds2 marks
A mass is 4.2 kg, correct to 1 decimal place. Write down the lower bound.
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