Daily Practice

Higher

7th April 1991

5 questions · 14 marks · Grades 6-7 · 61 question types in this band

1
Bounds2 marks
A mass is 590 kg, correct to the nearest 10. Write down the lower bound.
2
Factorising Harder Quadratics3 marks
Factorise 20x^2 - 13x + 2.
3
Direct and Inverse Proportion3 marks
y is inversely proportional to x. When x = 8, y = 36. Work out y when x = 6.
4
Spheres and Cones3 marks
A sphere has radius 9 cm. Work out its volume, leaving your answer in terms of pi.
5
Probability Trees3 marks
3 of 7 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.

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