Daily Practice

Higher

19th March 1990

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

1
Standard Form2 marks
Work out (8 x 10^3) x (7 x 10^-5). Give your answer in standard form.
2
Factorising Harder Quadratics3 marks
Factorise 4x^2 - 3x - 1.
3
Repeated Percentage Change3 marks
A price rises by 10% and then falls by 20%. Work out the overall percentage change, to 2 decimal places.
4
Spheres and Cones3 marks
A sphere has radius 15 cm. Work out its volume, leaving your answer in terms of pi.
5
Probability Trees3 marks
4 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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