Six boys and six girls are sitting in a row. The probability that all 6 girls sit together, is

Question

Six boys and six girls are sitting in a row. The probability that all 6 girls sit together, is (A)  (1/102)  (B)  (1/112)  (C)  (1/122)  (D)  (1/132)

Tardigrade Admin · Accepted Answer

Probability of sitting all girls together =((6+1)!6!/12!) =(7!6!/12.11.10.9.8.7!) =(1.2.3.4.5.6/12.11.10.9.8) =(1/132)

Q. Six boys and six girls are sitting in a row. The probability that all 6 girls sit together, is