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Probability: (i)
What is the probability of drawing an ace from a well shuffled deck
of cards?
(ii)
In a bag there are 6 blue marbles, 4 red and 3 green. If the bag is
shaken, what is the probability that a red marble will be drawn?
Compound
Interest: If
$1,000.00 is
invested
at 5% compounded annually, how much will be in the account at the end of
3 years? 
Equations with 3 unknowns:
From Equation 3: 
Ratio and
Proportions:
$30.00 is shared among
three people in the ratio 1:8:11.
Calculate (i) the smallest share, (ii) the largest share. Let's consider the ratio as three parts of a whole. The whole of the three parts then would be 1+8+11 = 20. The smallest share now is 1 out of 20 times 30 = (1/20) X 30 = 3/2 = 1.5 = $1.50 The largest share is (11/20) X 30 = 33/2 = 16.5 = $16.50 
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