Daily Practice - Higher
Grades 6-7 - Higher-tier method and manipulation.
2nd December 2020
- 1Speed and Density2 marks
A block has volume 40 cm^3 and density 3 g/cm^3. Work out its mass.
- 2Spheres and Cones3 marks
A sphere has radius 12 cm. Work out its volume, leaving your answer in terms of pi.
- 3Probability Trees3 marks
6 of 10 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
- 4Cumulative Frequency2 marks
Four classes in order have frequencies 11, 7, 4, 7. Write down the cumulative frequency at the end of the third class.
- 5The Product Rule for Counting3 marks
A code is 3 letters (A to Z) followed by 4 digits (0 to 9), and repeats are allowed. How many codes are possible?
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