Daily Practice - Higher
Grades 6-7 - Higher-tier method and manipulation.
1st August 2000
- 1Writing a Ratio as a Fraction or Linear Function2 marks
x : y = 2 : 5. Write y in terms of x.
- 2Vectors3 marks
a is the column vector (3, -6) and b is (-5, 6). Work out 3a - 2b as a column vector.
- 3Probability 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.
- 4Capture Recapture3 marks
50 voles are marked and released. Later 28 are caught, of which 7 are marked. Estimate the population.
- 5The Product Rule for Counting2 marks
A meal deal has 5 mains, 7 sides and 6 drinks. How many different meals are possible?
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