If 5 women or 8 girls can do a work in 84 days. In how many days can 10 women and 5 girls can do the same work?

• Given that 5 women is equal to 8 girls to complete a work. So, 10 women =
  16 girls. Therefore 10 women + 5 girls = 16 girls + 5 girls = 21 girls.
  8 girls can do a work in 84 days then 21 girls can do a work in (8*84/21) = 32 days.
  Therefore 10 women and 5 girls can a work in 32 days
• 11 years agoHelpfull: Yes(8) No(2)
• 5W=8G, Thus 1W=8/5G
  Now, 10W and 5G is equivalent to 21G
  8 girls can complete the work in 84 days
  21 girls can complete the work in 84/21*8=32 days
• 12 years agoHelpfull: Yes(6) No(6)
• 5W=8G=1/84
  1W=1/420=1/(84*5)
  10W=10/(420)
  1G=1/(84*8)
  5G=8/(84*8)
  
  10W+5G=10/(84*5)+5(84*8)
  =(80+25)/(84*5*8)
  =105/84*5*8
  =1/32
  so 10W and 5G can do the work in 32 days.........
• 11 years agoHelpfull: Yes(1) No(3)
• (n*a*b)/(b*c+a*d)
  n=84; a=5; b=8; c=10; d=5
  
  ans=32
• 7 years agoHelpfull: Yes(1) No(0)