Raj earns 25% on investment but loses 10% on another investment. If the ratio of two investment is 3:5 What is the gain or loss on The two investment taken together.?

• 300*25%=75
  500*10%=50
  
  total gain=(75-50)=25
  25 gain for 800
  hence,total gain is 3.125%
• 9 years agoHelpfull: Yes(35) No(1)
• let the investment be x
  then in first case:
  investment=3x
  s.p=3x *3x*25/100
  =15x/4
  in 2nd investment:
  investment=5x
  s.p=5x-10*5x/100
  =9x/2
  total s.p=15x/4+9x/2
  =33x/4=8.25
  profit%=8.25-8/8*100
  profit%=3.125%
• 9 years agoHelpfull: Yes(3) No(2)
• 25% gain
  3*25%-5*10%=25%
• 9 years agoHelpfull: Yes(2) No(7)
• Let the investment be x.
  One investment is = 3x, gain = 25%
  Second investment = 5x, loss = 10%
  Total investment = 8x
  Now,
  S.P of first investment = 3x + (3x*25%) = 15(x/4)
  S.p of 2nd investment = 5x - (5x*10%) = 9(x/2)
  Total S.P two investment together = 15(x/4) + 9(x/2) = 33(x/4)
  Now , Total gain = 33(x/4) - 8x= 0.25 x
  Gain % = (0.25x * 100)/8x = 3.125%
• 9 years agoHelpfull: Yes(1) No(0)
• Use alligation Parul..
  (x-(-10))/(25-x)=3/5
  
  
• 9 years agoHelpfull: Yes(0) No(0)
• ans is gain/loss= 5/6
• 9 years agoHelpfull: Yes(0) No(0)
• taking the 2 investments to be 3x and 5x
  total income of raj = (3x)*1.25+(5x)*0.9 = 8.25
  therefore gain%=0.25/8*100=3.125%
• 9 years agoHelpfull: Yes(0) No(0)
• 3*25%-5*10%=25%
• 9 years agoHelpfull: Yes(0) No(0)