Latest Capgemini Aptitude Question SOLUTION: A sum of money becomes 2.5 times itself at 12.5% simple interest p.a. The period of investment is:

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A sum of money becomes 2.5 times itself at 12.5% simple interest p.a. The period of investment is:

Asked In Capgemini vikash keshri (10 years ago)

Unsolved Read Solution (15)

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Read Solution (15) :

Yapadinne Raju  (10 years ago)

let period=t
sum=p
some amount of money becomes 2.5 times after some period
means 2.5p=p+interest(S.I)
interest S.I=1.5p
then S.I=ptr/100
1.5p=(pt*12.5)/100
t=12 years

Is this solution Helpfull? Yes (26) | No (2)  

RAKESH  (10 years ago)

let sum of money be x & invested for t years
A/Q 2.5*x=(x*12.5*t)/100
or 2.5*100=12.5*t
or t=(2.5*100)/12.5=20 years

Is this solution Helpfull? Yes (12) | No (15)  

niraj kumar  (10 years ago)

1.5x=x*12.5*t/100 i.e t=12 year

Is this solution Helpfull? Yes (12) | No (2)  

Nandyala Vinutna  (10 years ago)

let principle amount=x
total amount=2.5x
then simple interest=2.5x-x=1.5x
S.I=ptr/100
1.5x=x*t*12.5/100
t=12 years

so Answer is 12 years

Is this solution Helpfull? Yes (5) | No   

aditya agrawal  (10 years ago)

let the principle be p
simply interst is 2.5p-1p=1.5p
so si=p*R*t/100
1.5p=p*r*t/100
solving ans cmes
pls dnt give lengthy solutions

Is this solution Helpfull? Yes (3) | No   

SYED FEROZ  (9 years ago)

we have direct formula
T * R = 100(multiple no of principle - 1)
so t = 100(2.5 -1 )/12.5 = 12 year

Is this solution Helpfull? Yes (3) | No   

erfan jawed  (10 years ago)

Sorry there is calculation mistake ans is 12 instead of 3.

Is this solution Helpfull? Yes (2) | No   

erfan jawed  (10 years ago)

(2.5x-x)=(x*12.5*t/100)
t=3yrs

Is this solution Helpfull? Yes (1) | No (3)  

humaira sulthana  (10 years ago)

I cant understand can u tell me brief

Is this solution Helpfull? Yes | No (1)  

ssd  (9 years ago)

let p=100
then 2.5 times of 100=250=amount, so SI= 250-100= 150
now SI=P*R*T/100 after putting the values we get T=150/12.5= 12

Is this solution Helpfull? Yes | No   

sourav kumar bhoi  (9 years ago)

Ia a sum of money becomes X times in T years at S.I.,, then the rate of interest is given by
R= 100(X-1)/T
So applying this formula...the answer will be 12..

Is this solution Helpfull? Yes | No   

mopuri harikrishna  (9 years ago)

let p is sum
p+pT*12.5/100=2.5p
t=12

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  (6 years ago)

1.5*x=x*12.5*t/100

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Electro Gldiator  (6 years ago)

rate(r)=12.5% m(times)=2.5
direct formula will be der:
time=100(m-1)/r
100(2.5-1)/12.5
100*15/125=12
so answer is 12

Is this solution Helpfull? Yes | No   

Nikhil Edwin  (6 years ago)

Use this formulae 5) If sum of money becomes (z times) in (T) years at simple interest, then rate of interest (R) can be calculated using the formula:
Rate of Interest (R) % = 100 (z – 1)
T

6) If sum of money becomes (z times) at rate of interest (R) % per annum at simple interest, then time (T) can be calculated using the formula:
Time (T) = 100 (z – 1)
R

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