The number of remainders between the number of men and the number of women after leaving the cinema is :
`780 - 150= 630` ( part )
Divided into 7 equal parts.
The ratio between the number of males and females of 1 in the cinema is :
`630 : 7 = 90` ( part )
The number of men in the cinema at the beginning was :
`90 + 150 = 240` ( man )
Answer : `240` man.
