Daily Practice

Higher

26th October 1989

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

1
Bounds2 marks
A mass is 220 kg, correct to the nearest 10. Write down the upper bound.
2
Factorising Harder Quadratics3 marks
Factorise 9x^2 + 24x + 16.
3
Repeated Percentage Change3 marks
A town's population is 9000 and grows by 8% each year. Work out the population after 6 years, to the nearest whole number.
4
Spheres and Cones3 marks
A sphere has radius 12 cm. Work out its volume, leaving your answer in terms of pi.
5
Probability Trees3 marks
6 of 10 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.

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