maths
Maths Puzzle
Numerical Ability
Probability
Player A has one more coin than player B. Both players throw all of their coins simultaneously and observe the number that come up heads. Assuming all the coins are fair, what is the probability that A obtains more heads than B?
Read Solution (Total 1)
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- A has n+1 coins B has n coins, for upto n coins both have equal probability of getting equal heads,for (n+1)th coin it can be either head or tail with equal probability of 1/2, so the probability that A gets more head than B is 1/2
OR either A throws more head than B,or A throws more tails than B, both having equal probability and are mutually exculscive ,hence ans. is 1/2 - 10 years agoHelpfull: Yes(1) No(0)
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