Wipro Company Numerical Ability Probability

The odds,against the ocurance of a head when a loaded coin is tosed are 3:5.The probability of getting a tail when the coin is tossed is
a)3/8 b)5/8 c)3/2 d)5/2

Read Solution (Total 1)

odds against =failure/success.
now in this question.ration is given as=3/5.
so total count is 8.
according to question 5 time heads is coming and 3 times head is not coming.
therefore,
the probability of getting a tail when the coin is tossed is=8-5/8=3/8
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Wipro Other Question

The probability of getting atleast one head,where a loaded coin is tossd twice(given that head occurs twice as often as tails) is
a)7/9 b)8/9 c)4/9 d)2/9 If 4 coins are tossed,the probability of getting 2heads and 2 tails is
a)3/8 b)6/11 c)2/5 d)4/5