[tex]\boldsymbol{\mathbf{Answer}}[/tex]
[tex]\boldsymbol{\mathbf{604800\,different\, line \,ups \,are\, possible}}[/tex]
[tex]\boldsymbol{\mathbf{Step-by-step explanation}}[/tex]
Co-ordinator selected 7 songs out of 10 songs..
To find the how many different sequences are possible.
= [tex]{10}\times{9}\times{8}\times{7}\times{6}\times{5}\times{4}[/tex]
= 604800 ways.
[tex]\boldsymbol{\mathbf{604800\,different\, line \,ups \,are\, possible}}[/tex]
