Daily Practice · Higher

Daily Practice - Higher

1st July 1993

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

1
Reverse Percentages3 marks
A bill is £696 including VAT at 20%. Work out the amount before VAT.
2
Factorising Harder Quadratics3 marks
Factorise 4x^2 - 1.
3
Repeated Percentage Change3 marks
A town's population is 38500 and grows by 3% each year. Work out the population after 3 years, to the nearest whole number.
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
3 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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