Higher
11th July 1955
- 1Repeated Percentage Change3 marks
A price rises by 20% and then falls by 25%. Work out the overall percentage change, to 2 decimal places.
- 2Congruent Triangles2 marks
Two triangles are known to be congruent because all three pairs of sides are equal. Which congruence condition is this?
- 3Conditional Probability3 marks
29 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 228 values. What cumulative frequency do you read across from to estimate the lower quartile?
- 5Standard Form3 marks
Work out (27 x 10^11) / (9 x 10^4). Give your answer in standard form.
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Any date always gives the same five questions, so a sheet can be set again or shared. All of July 1955, including the monthly compilation PDF.