Daily Practice
Higher Plus
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24th September 1986
- 1Bounds3 marks
A rectangle is 24 cm by 25 cm, each correct to the nearest cm. Work out the upper bound of its area.
- 2Rearranging Harder Formulae3 marks
Make x the subject of 5x + 6 = y(x + 6).
- 3Velocity Time Graphs2 marks
A train slows steadily from 26 m/s to rest in 10 seconds. Work out its deceleration.
- 4The Cosine Rule3 marks
A triangle has sides 15 cm, 13 cm and 14 cm. Work out the angle opposite the 15 cm side, to 1 decimal place.
- 5Probability Equation Questions3 marks
A bag holds 3 red and n blue counters. The probability of taking a red is 3/5. Work out n.
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Any date always gives the same five questions, so a sheet can be set again or shared. All of September 1986, including the monthly compilation PDF.