Daily Practice · Higher

Daily Practice - Higher

Grades 6-7 - Higher-tier method and manipulation.

28th May 1998

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

1
Probability Trees3 marks
2 of 5 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 30 values. Work out the frequency density.
3
Standard Form2 marks
Work out (4 x 10^8) x (7 x 10^-6). Give your answer in standard form.
4
Factorising Harder Quadratics3 marks
Factorise 4x^2 + 5x - 6.
5
Repeated Percentage Change3 marks
A town's population is 7500 and grows by 3% each year. Work out the population after 6 years, to the nearest whole number.

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