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

1.3.125%gain
2.13.125%loss
3.13.125%gain
4.6.25%loss

• 3x and 5x
  total investment=3x+5x
  =8x
  3x+3x*25%=15x/4
  5x-5x*10%=9x/2
  total income=33x/4
  total profit=33x/4-8x=x/4
  %=3.125%gain
• 9 years agoHelpfull: Yes(7) No(0)
• lets take investments as 300 and 500...25 % profit on 300 means 75...10 % loss on 500 means 50(loss)..total profit 25,,,profit %= (25/800)*100=3.125...this can b done mentally...
• 9 years agoHelpfull: Yes(7) No(2)
• Let the investments be 300 and 500.
  Gain on 300= 25% of 300= 75
  loss on 500= 10% of 500= 50
  total investment= 800
  net gain or loss= 75-50= 25 gain
  so
  gain = 25*100/800 %= 3.125%.
  so answer is= 3.125% gain
• 9 years agoHelpfull: Yes(5) No(0)
• 3.125% gain
• 9 years agoHelpfull: Yes(1) No(1)
• 3.125% gain.:)
• 9 years agoHelpfull: Yes(1) No(0)
• let the ratio be 75:125 for easy calculation
  therefore,
  gain=25% of 75=18.75 & loss=10% of 125=12.5
  net gain= 18.75-12.5=6.25
  gain%=(6.25/200)*100=3.125
  option 1
• 9 years agoHelpfull: Yes(1) No(0)
• can u explain me
• 9 years agoHelpfull: Yes(0) No(1)
• Ans: 3.125%gain
• 9 years agoHelpfull: Yes(0) No(0)
• let investment1=x,investment2=y.
  x/y=3/5. so,y=5x*3.
  25% gain in x & 10% loss in y..so,0.25*x-0.1y=net gain/loss.
  gain or loss %={(0.25x-0.1y)/x+y}*100
  =>{(0.25x-0.166x)/2.67x}*100 (since,y=5/3*x)
  =>(0.083/2.66)*100
  =>3.125% gain as the result is +ve..
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• 3.125% gain
  
• 9 years agoHelpfull: Yes(0) No(0)