Daily Practice

Higher

14th April 1988

5 questions · 13 marks · Grades 6-7 · 61 question types in this band

1
Probability Trees3 marks
2 of 7 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
2
Histograms2 marks
A histogram class is 10 units wide and contains 15 values. Work out the frequency density.
3
Standard Form2 marks
Work out (3 x 10^4) x (2 x 10^-2). Give your answer in standard form.
4
Factorising Harder Quadratics3 marks
Factorise 8x^2 - 30x + 25.
5
Repeated Percentage Change3 marks
A town's population is 12500 and grows by 6% each year. Work out the population after 3 years, to the nearest whole number.

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