10.(a) A bag contains ten 5 coins, twenty * 2 coins
and forty * 1 coins. If it is equally likely that
one of the coins will fall down when the bag is
turned upside down, what is the probability
that the coin :
(i) will not be a * 2 coin ?
(ii) will be a 5 coin ?
(ui) will neither be * 5 coin nor be * 1 coin ?
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Answer:
- 1/3
- 1/3
- 1/2
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