4 men and 6 women together can complete a work in 8 days while 3 men and women together can complete it in 10 days. 20 women working together will complete it in days?

• let 1 man's 1 day work=x and 1 woman's 1 day work=y;
  den 4x+6y=1/8 , 3x+7y=1/20
  on solving , x=11/400 y=1/400
  so 20 women's 1 day work=20 * (1/400) = 1/20.
  they can finish the work in 20 days.
• 11 years agoHelpfull: Yes(3) No(0)