Practice Australia & New Zealand questions with answers and explanations.
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Subtract 13 and divide by 2; x=18.
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Increase=15/239×100=6.3%.
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28×45=1260.
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Sale price=298×(1−30/100)=208.6.
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Use combinations: C(19,6)=27132.
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Probability equals favourable outcomes divided by total outcomes.
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Subtract 14 and divide by 6; x=8.
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Increase=26/229×100=11.4%.
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18×80=1440.
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Sale price=288×(1−10/100)=259.2.
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Use combinations: C(9,6)=84.
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81×1.25=101.25.
