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00:00 - 00:59 | the question is three boys of class 10th board was of class 9th and 5 yrs of class 12th sit in a row so that all the shit together is equal to before option we have to find out our correct option so let's start so first of all we can write we can we can sing 3 packets we can say suppose we can think of one consisting of three boys one consisting of three boys of class 10 other interesting |

01:00 - 01:59 | Oppo voice of class 11 of class 11th and now we can say and last one last one contains five boys of class 12th guide answer class expected that we can say for a better understanding can be that we can suppose that can be in we know that it can be arranged in 3 factorial ways and |

02:00 - 02:59 | content of contents of this kids that is out class these structures can be further can be further are in 3 factorial for factorial and 5 factorial ways because every because class 10 students we can 3 and 4 boys from class 11th and 12th and dietary factors affect on 5 factorial base respectively so right hands total number of ways and total number of ways |

03:00 - 03:59 | have you could 3 factorial into 3 factorial in 24 factorial in 25 custodial 3 factorial 3 factorial whole square into 4 factorial in 25 factorial so now we can say thank you |