Given: Three men and five boys are to be seated in a linear fashion so that men sit together. Formula: Treat the persons who sit together as one and arrange. Then, arrange the group internally. Calculation: Men can be treated as one group. So, five boys and 1 group of men can be arranged in 6! ways. Three men can be arranged in 3! ways. Total no. of cases = 6! × 3! = 720 × 6 = 4320 ways ∴ Required no. of ways= 4320