JEE Advance - Mathematics (1979 - No. 4)
Six boys and six girls sit in a row randomly. Find the probability that
(i) the six girls sit together
(ii) the boys and girls sit alternately.
(i) the six girls sit together
(ii) the boys and girls sit alternately.
The probability that the six girls sit together is 1/132.
The probability that the boys and girls sit alternately is 1/462.
The probability that the six girls sit together is 1/462.
The probability that the boys and girls sit alternately is 1/132.
Both probabilities cannot be determined.