Daily Practice

Higher Plus

21st May 1978

5 questions · 14 marks · Grades 8-9 · 51 question types in this band

1
Bounds3 marks
x = 47 and y = 31, each correct to the nearest whole number. Work out the upper bound of x - y.
2
Factorising Harder Quadratics3 marks
Solve 4x^2 - 9 = 0.
3
Velocity Time Graphs2 marks
A train slows steadily from 29 m/s to rest in 5 seconds. Work out its deceleration.
4
The Cosine Rule3 marks
A triangle has sides of 13 cm and 14 cm with an angle of 90° between them. Work out the third side, to 1 decimal place.
5
Conditional Probability3 marks
A bag holds 7 red, 6 blue and 6 green counters. Two are taken without replacement. Given neither is green, what is the probability both are red?

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