Daily Practice · Higher

Daily Practice - Higher

28th November 1995

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

1
Probability Trees3 marks
3 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
30 beetles are marked and released. Later 70 are caught, of which 7 are marked. Estimate the population.
3
Reverse Percentages3 marks
A bill is £504 including VAT at 20%. Work out the amount before VAT.
4
Factorising Harder Quadratics3 marks
Factorise 4x^2 - 17x - 15.
5
Writing a Ratio as a Fraction or Linear Function2 marks
x : y = 4 : 7. Write y in terms of x.

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