Daily Practice · Higher

Daily Practice - Higher

20th January 1992

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

1
Reverse Percentages3 marks
A bill is £744 including VAT at 20%. Work out the amount before VAT.
2
Factorising Harder Quadratics3 marks
Factorise 10x^2 + x - 3.
3
Repeated Percentage Change3 marks
A price rises by 20% and then falls by 25%. Work out the overall percentage change, to 2 decimal places.
4
Spheres and Cones3 marks
A sphere has radius 18 cm. Work out its volume, leaving your answer in terms of pi.
5
Probability Trees3 marks
1 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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