Number of male and female employees work in four different companies: P, Q, R, and S. The number of male employees in company P is 560, which is 100% ...

Number of male and female employees work in four different companies: P, Q, R, and S. The number of male employees in company P is 560, which is 100% more than the number of female employees in P. The ratio of male to female employees in company Q is 4:5, and the number of females in company P is equal to the number of male employees in company Q. The total number of male employees in all four companies is 1760, and the total number of employees in all four companies is 3500. The number of male employees in company S is 420, and the number of female employees in company R is 650.

Find the sum of the number of male employees in company R and the number of female employees in company S.