Daily Practice

Higher

22nd January 1987

5 questions · 15 marks · Grades 6-7 · 61 question types in this band

1
Fractional and Negative Indices3 marks
Work out 16^(3/2).
2
Factorising Harder Quadratics3 marks
Factorise 4x^2 + 4x - 15.
3
Repeated Percentage Change3 marks
A town's population is 29500 and grows by 8% each year. Work out the population after 4 years, to the nearest whole number.
4
Spheres and Cones3 marks
A sphere has radius 6 cm. Work out its volume, leaving your answer in terms of pi.
5
Probability Trees3 marks
7 of 9 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.

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