Q. If apples are bought at the rate of 30 for Rs.100. How many apples must be sold for Rs.100 so as to gain 20%?
Option
A) 28
B) 25
C) 20
D) 22

• SP for 30 apples to gain 20%= 100*120/100 =120
  so 30 apples must be sold for rs 120
  
  rs 120= 30 apples
  rs 100= (30/120)*100 =25 apple
• 10 years agoHelpfull: Yes(64) No(2)
• formula for this type of questions is
  (goods left/goodssold)*100
  
  by options
  a 2/28*100=7.14% this is not the answer
  b 5/25*100=20% hence correct answer is b...
• 10 years agoHelpfull: Yes(33) No(3)
• To get 20% profit, we need to sell it for Rs.120.
  if SP of 30 apples is 120, then SP of 1 apple is RS.4,
  But we SP is only Rs.100,
  so numb of apples is (100/4)=25
  Ans: opt B) 25 apples
• 10 years agoHelpfull: Yes(14) No(1)
• 30 for 100 then each apple cost will be 3.333333
  in order to gain 20% (rs 20) from 100 will be selling 80 rs apples that is 24
• 10 years agoHelpfull: Yes(7) No(1)
• ans:d
  20=(profit/100)*100
  profit=20
  s.p=100+20 =120 for 30 apples
  100 for ?
  100*30/120=25
• 10 years agoHelpfull: Yes(3) No(1)
• cost price of 30 apples Rs.100
  so cost price of 1 apple is Rs.10/3
  now,given gain=20%
  therefore s.p=120% of cost price
  selling price of one apple=(120/100)*(10/3)=4
  therefore for a profit of 20%,the s.p of 1 apple will be Rs.4
  for Rs.100 ,(1/4*100)=25 apples must be sold.
  
• 9 years agoHelpfull: Yes(2) No(0)
• 30 apples - Rs.100
  1 apple - 10/3
  20% profit means
  1 apple - (10/3)+(2/3)=12/3
  if Rs.12/3 costs - 1 apple
  Rs.100 costs - (100*3)/12=25
• 10 years agoHelpfull: Yes(1) No(1)
• ans is 25
  
• 9 years agoHelpfull: Yes(1) No(0)
• 100 = (120/100) * c.p
  c.p = 1000/12
  30 apples for 100
  ? apples for 1000/12 = 25
• 10 years agoHelpfull: Yes(0) No(1)
• 100/30=3.33
  (3.33*20)/100=.66
  3.33+.66=3.99
  100/3.99=25.06
  so answer is b
• 9 years agoHelpfull: Yes(0) No(0)
• answer is 25
  cp of one apple is 100/30 or 10/3
  sp for one apple is (10/3)*20% of(10/3)
  sp is 4
  so sp for rs 100 apple is 25
• 9 years agoHelpfull: Yes(0) No(0)
• 25 apples for Rs. 100
  
• 9 years agoHelpfull: Yes(0) No(0)
• c.p=1000/3
  s.p=(120/100)*(1000/3)
  ans=20
• 9 years agoHelpfull: Yes(0) No(0)
• if CP of M article is equal to the SP of N article then
  %gain or loss = ((M-N)/n)*100
  let N apples have been sold
  20 = ((30-N)/N)*100
  N=25 apples
• 9 years agoHelpfull: Yes(0) No(0)
• 25% GAIN FROM 30 APPLES=120*100/100=120
  30 MUST BE SOLD AT THE RATE =120RS
  100 APPLES=(3/12)*100=25
• 9 years agoHelpfull: Yes(0) No(0)
• cost of 30 apples - 100rs
  cost of 1 apple - 100/30 = 10/3
  
  SP = [1+(20/100)]* CP
  = 120/100 * 10/3
  = 4 rs
  
  in 4 rs - 1apple is sold
  therefore in 100 rs - 100/4 = 25
• 9 years agoHelpfull: Yes(0) No(0)
• If a man buys x items for Rs.y and sells z items for Rs.w,then the gain or loss percent made him is
  %gain or loss=((xw/zy)-1)*100.
  therefore,20=((300/100z)-1)*100=20......(eq)
  By solving this eq. ,we will get z=25
• 9 years agoHelpfull: Yes(0) No(0)
• Cost price of each apple=100/30.
  let x number of apples should be sell to gain 20 percent profit.
  Then,selling price of each apple=100/x.
  we can write,100/x=(100/30)*1.2
  »x=25
  
• 8 years agoHelpfull: Yes(0) No(0)
• Ans 25
  cost of 1 apple=100/30=3.33
  Cost of 1 apple to get 20% gain is 120/100*3.33=3.999
  So for 100 rupees 100/3.999=25.06 (Appox 25) apples can be sold
• 8 years agoHelpfull: Yes(0) No(0)
• First Find selling price of 30 apples using the given data which would be rupees 120
  Then perform interpolation in order to find for rupees 100 which would be 25
• 3 years agoHelpfull: Yes(0) No(0)