Daily Practice

Higher

1st March 1979

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

1
Repeated Percentage Change3 marks
A town's population is 23500 and grows by 6% each year. Work out the population after 2 years, to the nearest whole number.
2
Vectors3 marks
a is the column vector (4, -1) and b is (-3, -1). Work out 3a - 5b as a column vector.
3
Probability Trees3 marks
5 of 8 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
4
Histograms2 marks
A histogram class is 2 units wide and contains 1 values. Work out the frequency density.
5
Reverse Percentages3 marks
A bill is £600 including VAT at 20%. Work out the amount before VAT.

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