A can do (1/3) work in 5days & B can do (2/5) of work in 10 days. Calculate in how much days they complete work, working together.

• A can do (1/3) work in 5days & B can do (2/5) of work in 10 days.
  A can do 1) work in 15days & B can do 1 of work in 25 days.
  
  Together they can do 1 work in 15*25/(15+25) = 15*25/40 = 75/8 days
• 12 years agoHelpfull: Yes(52) No(0)
• 150/16 days
• 12 years agoHelpfull: Yes(10) No(7)
• a's one day work is 1/15
  b's one day work is 1/25
  a&b 's one day work is =1/15+1/25=8/75
  so required days = 75/8
• 12 years agoHelpfull: Yes(4) No(3)
• ans is 9.43..
  
• 12 years agoHelpfull: Yes(3) No(3)
• 75/8 is the correct one................
  
• 12 years agoHelpfull: Yes(2) No(0)
• A can do in 1/3 work in 5 days
  so,in 1 day A will do=1/15
  simmilarly B will do=1/25
  now if both they work together then in 1 days they will do =8/75
  so,8/75 work in 1 day
  then whole work will be in 55/8 is it right??
• 12 years agoHelpfull: Yes(1) No(15)