if a and b are mixed in 3:5 ration and b,c are mixed in 8:5 ration if the final mixture is 35 litres,find the amount

• a/b = 3/5 and b/c = 8/5
  b is common in both ratios so taking L.C.M of both values of 'b' i.e take L.C.M Of 5 and 8 which is 40.
  now if 'b' is 40 in ratio a/b =3/5 then a is 24
  similarly if 'b' is 40 in ratio b/c = 8/5 then c is 25
  now a:b:c are in ratio 24:40:25
  and it is given that final mix is 335 lt.
  so 24k+40k+25k = 35 which gives k =0.39
  now a= 24k = 9.43 lit
  b = 40k = 15.6 lit is ans
• 13 years agoHelpfull: Yes(12) No(1)
• if a and b are mixed in 3:5 ratio and b,c are mixed in 8:5 ratio if the final
  mixture is 35 litres, find the amount of b in the final mixture
  :
  Let b = amt of b in each mixture
  :
  Put a & c in terms of b
  :
  =
  5a = 3b
  a = (3/5) b
  a = .6b
  :
  =
  8c = 5b
  c =(5/8) b
  c =.625b
  :
  Add together
  a + b + b + c = 35
  .6b + 2b + .625b = 35
  3.225b = 35
  b =35/3.225
  b = 10.85 litres in the final mixture
  
  
• 8 years agoHelpfull: Yes(0) No(0)