If P is the midpoint of XY, XP = 8x - 2 and PY = 12x - 30, find the value of x.
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Answer:
111 / 190
Step-by-step explanation:
Let us first compute the probability of picking 2 of each sweet. Take liquorice as the first example. There are 12 / 20 liquorice now, but after picking 1 there will be 11 / 19 left. Thus the probability of getting two liquorice is demonstrated below;
Apply this same concept to each of the other sweets;
Now add these probabilities together to work out the probability of drawing 2 of the same sweets, and subtract this from 1 to get the probability of not drawing 2 of the same sweets;
The probability that the two sweets will not be the same type of sweet =
111 / 190