Raj earns 25% on an investment but losses 10% on another investment.If the ratio of the two investment is 3:5 what is the gain or the loss on the two investment taken together?
ans: a)3.125% gain
b)6.25%loss
c)13.125%loss
d)13.125%gain

• ans is option a
  just take investments as multiples of 3 and 5 like 3000 and 5000
  
  gain is 25% so 125% of 3000 is 3750 and loss in another investment is 10% so 90% of 5000 is 4500
  so, the amount after investment is 3750+4500=8250 and before investment was 3000+5000=8000.
  difference = +250
  %gain= change/investment * 100 %
  = (250/8000) *100 = 3.125%
• 9 years agoHelpfull: Yes(19) No(0)
• Ans is a...
  suppose that investment is 800 rs
  than
  1.25*300+.9*500=>825
  that means profit is 3.125%
• 9 years agoHelpfull: Yes(2) No(0)
• ratio of two investment is 3:5
  so first investment = 3 x
  so second investment = 5 x
  after applying 25 % gain and 10% loss on both investments respectively
  = (3 x * 125)/100 +(5 x * 90)/100 = 15 x/4 + 9 x/2
  
  so gain or loss %=( ((3 x + 5 x) - (15 x/4 + 9 x/2))/8 x) *100
  = - 3.125
  so 3.125 % loss Answer
  
  
• 9 years agoHelpfull: Yes(2) No(0)
• .25*3/8=.09375
  .1*5/8=.06250
  
  .03125 mean 3.125% gain
• 9 years agoHelpfull: Yes(1) No(0)
• given ratio 3:5 then let the ration be 300:500
  total 800
  25% of 300 is 75 and 10% of 500 is 50
  (300+75)+(500-50)=825
  (825-800)/800*100=3.125%
• 9 years agoHelpfull: Yes(1) No(0)
• answer is 3.125%
• 9 years agoHelpfull: Yes(0) No(0)
• ans- 3.125% gain
• 9 years agoHelpfull: Yes(0) No(0)
• 13.125 % gain
  
• 9 years agoHelpfull: Yes(0) No(0)
• ans is 3.125% gain
• 9 years agoHelpfull: Yes(0) No(0)
• 3.125%gain
  let investments be 3000 & 5000 ,gain is 25% i.e . 125% of 3000 is 3750 and loss in another investment is 10% i.e. 90% of 5000 is 4500
  so, the amount after investment is 3750+4500=8250 and before investment was 3000+5000=8000.
  difference = 8250-8000=250
  %gain= change/investment * 100 %
  = ((8250-8000)/8000) *100 = 3.125% gain
  
• 9 years agoHelpfull: Yes(0) No(0)
• a)3.125%gain
• 9 years agoHelpfull: Yes(0) No(0)
• ratio of two investment is 3:5
  so first investment = 3 x
  so second investment = 5 x
  after applying 25 % gain and 10% loss on both investments respectively
  = (3 x * 125)/100 +(5 x * 90)/100 = 15 x/4 + 9 x/2
  
  so gain or loss %=( ( (15 x/4 + 9 x/2)-(3 x + 5 x))/8 x) *100
  = 3.125
  so 3.125 % gain Answer(a)
• 9 years agoHelpfull: Yes(0) No(0)
• 250*100/8000=3.125
• 9 years agoHelpfull: Yes(0) No(0)