A sum was put at simple interest at certain rate for 3 years. Had it been put at 1% higher rate it would have fetched Rs. 63 more. The sum is: A. Rs. 2,400 B. Rs. 2,100 C. Rs. 2,200 D.Rs. 2,480

• 1 percent for 3 years= 63
  1 percent for 1 year = 21
  => 100 percent = 2100
  
• 9 years agoHelpfull: Yes(65) No(2)
• amount= ptr/100
  p=principle let it be x
  t,time = 3years given
  r,rate= 1% given
  amount=63
  63=x*3*1/100
  x=2100
• 9 years agoHelpfull: Yes(28) No(8)
• sum -x, rate - y
  (x(y+1)*3)/100- (x*y*3)/100 = 63
  on solving we get , The Sum x= 2,100
• 9 years agoHelpfull: Yes(21) No(1)
• p*(r+1)*3/100 - p*r*3/100 =63
  p[r+1-r]=63*100/3
  p=2100
• 8 years agoHelpfull: Yes(16) No(0)
• 3pr/100=si
  3p(r+1)/100=si+63
  si+3p/100=si+63
  p=2100
• 8 years agoHelpfull: Yes(6) No(0)
• Let p be the sum
  r is the rate
  t is time 3 year
  then
  ((P*R*T)/100)-((p*(r+1)*T)/100)=63
  =>P=2100
• 8 years agoHelpfull: Yes(4) No(0)
• Given 3%=63 i.e 1% =21 and 100%=2100
• 9 years agoHelpfull: Yes(2) No(1)
• Ans:B.....
• 9 years agoHelpfull: Yes(1) No(2)
• SI=P*R*3/100 (t=3)
  
  SI=P*(R+1)*3/100 +63 (1%higher(r+1))
  
  P*R*3/100=P*(R+1)*3/100+63
  
  3PR/100=3PR/100+3P/100+63
  P=2100
• 8 years agoHelpfull: Yes(1) No(0)
• s.i= (sum*rate*time)/100
  here,first condition sum=s,rate=r,time=3
  in second condition sum=s,rate=r+1,time=3
  according to question
  difference between second sum and first sum is 63 so..
  (s*(r+1)*3)/100 - (s*r*3)/100 = 63
  (3sr+3s-3sr)/100 = 63 taking lcm
  3s = 63*100
  s=2100
• 8 years agoHelpfull: Yes(1) No(0)
• 63=3p/100
  21=p/100
  p=2100
• 8 years agoHelpfull: Yes(1) No(0)
• (p*(R+1)*3)/100-(p*r*3)/100=63;
  3pr+3p-3pr=63
  p=2100
• 8 years agoHelpfull: Yes(0) No(1)
• B don't know
• 8 years agoHelpfull: Yes(0) No(1)
• let amount=p,rate=x,si=si
  first case
  si=(p*x*3)/100---------------1
  one more % rate
  si=(p*(x+1)*3)/100-63-------------------2
  solve eq 1 and 2
  (p*x*3)/100=(p*(x+1)*3)/100-63
  ANS p=2100
• 8 years agoHelpfull: Yes(0) No(0)
• B
  1 percent for 3 years= 63
  1 percent for 1 year = 21
  => 100 percent = 2100
• 7 years agoHelpfull: Yes(0) No(0)
• 2100
  check options
  1%0f 2100=21 rate for 1 year
  3 *21 = 63
• 7 years agoHelpfull: Yes(0) No(0)
• PTR/100
  P=X
  T=3
  R=1
  Sum=63
  63=X *1*3/100
  X=2100
• 7 years agoHelpfull: Yes(0) No(0)
• 3p/100=63
  so p=2100
  so Option B
• 7 years agoHelpfull: Yes(0) No(0)
• 63/3=21
  Ans=2100
• 6 years agoHelpfull: Yes(0) No(0)