Capgemini
Company
Numerical Ability
Simple & Compound Interest
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
Read Solution (Total 19)
-
- 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.....
- 8 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)
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