Higher
16th January 1961
- 1Repeated Percentage Change3 marks
A price rises by 15% and then falls by 10%. Work out the overall percentage change, to 2 decimal places.
- 2Congruent Triangles2 marks
Two triangles are known to be congruent because both are right-angled with equal hypotenuses and one other equal side. Which congruence condition is this?
- 3Conditional Probability3 marks
24 students study Spanish and 9 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 240 values. What cumulative frequency do you read across from to estimate the lower quartile?
- 5Fractional and Negative Indices2 marks
Write 5^-1 as a fraction.
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Any date always gives the same five questions, so a sheet can be set again or shared. All of January 1961, including the monthly compilation PDF.