Daily Practice · Higher

Daily Practice - Higher

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

16th March 2021

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

1
Probability Trees3 marks
4 of 7 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
2
Capture Recapture3 marks
45 voles are marked and released. Later 28 are caught, of which 4 are marked. Estimate the population.
3
Reverse Percentages3 marks
A bill is £624 including VAT at 20%. Work out the amount before VAT.
4
Equation of a Line3 marks
A line has gradient -3 and passes through (3, -14). Work out its equation.
5
Writing a Ratio as a Fraction or Linear Function2 marks
x : y = 3 : 7. Write y in terms of x.

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