Higher
28th April 1961
- 1Direct and Inverse Proportion3 marks
y is directly proportional to x. When x = 6, y = 36. Work out y when x = 9.
- 2Finding the Area of Any Triangle3 marks
A triangle has sides of 16 cm and 12 cm with an angle of 121° between them. Work out its area, to 1 decimal place.
- 3Probability Trees3 marks
4 of 8 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
- 4Capture Recapture2 marks
A capture-recapture estimate is made of the beetle population of a woodland. State one assumption the method relies on.
- 5Recurring Decimals to Fractions3 marks
Write the recurring decimal 0.666... as a fraction in its simplest form.
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Any date always gives the same five questions, so a sheet can be set again or shared. All of April 1961, including the monthly compilation PDF.