1. a bag contains 15 one rupee coins,25 two rupee coins & 10 five rupee coins.if a coin is selected at random from the bag,then the probability of not selecting a one rupee coin is
a).0.30 b).0.70
c).0.25 d).0.20
2. if a card is drawn at random from a pack of 52 cards,what is the chance of getting a spade or an ace
a).4/13 b).5/13
c).0.25 d).0.20
3. two coins are tossed simultaneously.what is the probability that the second coin would show a tail given that the first coin has shown a head
a).0.50 b).0.25
c).0.75 d).0.125
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