Daily Practice · Higher

Daily Practice - Higher

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

11th August 2008

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

1
Bounds2 marks
A mass is 11 kg, correct to the nearest whole number. Write down the lower bound.
2
Factorising Harder Quadratics3 marks
Factorise 2x^2 + 3x - 9.
3
Repeated Percentage Change3 marks
A price rises by 20% and then falls by 15%. Work out the overall percentage change, to 2 decimal places.
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
1 of 8 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.

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