[" Twenty identical coins each with probability "p],[" of showing heads are tossed.The probability "],[" of heads showing on "10" coins is same as that "],[" of heads showing on "11" coins then "p=]

Fourty identical coins each with probability p of showing heads are tossed. The probability of heads showing on 20 coins is sme as that of heads showing on 21 coins. Then p=

Twenty identical coins each with probability p of showing heads are tossed. If the probability of heads showing on 10 coins is same as that of tails showing on 11 coins, then p is

One hundred identical coins, each with probability 'p' of showing heads are tossed once. If 0 lt p lt 1 and the probability of heads showing on 50 coins is equal to that of heads showing on 51 coins, then the value of p is

One hundred identical coins, each with probability 'p' of showing heads are tossed once. If 0 lt p lt 1 and the probability of heads showing on 50 coins is equal to that of heads showing on 51 coins, then the value of p is

One hundred identical coins, each with probability 'p' of showing heads are tossed once. If 0 lt p lt 1 and the probability of heads showing on 50 coins is equal to that of heads showing on 51 coins, then the value of p is

One hundred identical coins each with probability p showing up heads are tossed once. "If" 0 lt p lt 1 and the probability of heads showing on 50 coins is rqual to that of heads showing on 51 coins, then the value of p is