Aptitude - Simple Interest - Discussion
Discussion Forum : Simple Interest - General Questions (Q.No. 4)
4.
How much time will it take for an amount of Rs. 450 to yield Rs. 81 as interest at 4.5% per annum of simple interest?
Answer: Option
Explanation:
years Discussion:
65 comments Page 5 of 7.
Mahesh said:
1 decade ago
The formula is i=ptr/100
p=450
t=?
r=4.5
i=81
then
t=100i/pr
t=(100*81)/450*4.5)
t=4 years
p=450
t=?
r=4.5
i=81
then
t=100i/pr
t=(100*81)/450*4.5)
t=4 years
Anupama said:
1 decade ago
t=(100*81)/(450*4.5)
t=(2*9)/4.5
t=18/4.5
y=1800/450=4 years.
So, lets dived them as 1800/450 = 4 years.
Bcoz if you want to convert decimal into number just put that much zeros same as above number here in 4.5 we convert it into 450 so just put two zeros above also bcoz from fraction point we increase 2 no. so 2 zeros are der.
Best of luck
t=(2*9)/4.5
t=18/4.5
y=1800/450=4 years.
So, lets dived them as 1800/450 = 4 years.
Bcoz if you want to convert decimal into number just put that much zeros same as above number here in 4.5 we convert it into 450 so just put two zeros above also bcoz from fraction point we increase 2 no. so 2 zeros are der.
Best of luck
Triniford said:
1 decade ago
SI=PTR/100
81=450*4.5*x/100
81=9*4.5
=4.05/81
=4 years
81=450*4.5*x/100
81=9*4.5
=4.05/81
=4 years
Raviteja said:
1 decade ago
@Raghu.
We know that I= PTR/100
He gave I=81, p=450, R= 4.5 we have to find time (T)=?
T=100*I/PR
(100*81)/(4.5*450)= 8100/2025= 4 years got it.
We know that I= PTR/100
He gave I=81, p=450, R= 4.5 we have to find time (T)=?
T=100*I/PR
(100*81)/(4.5*450)= 8100/2025= 4 years got it.
Sobana said:
1 decade ago
we know that formula for calculate the N value.
given data is:
S.I=81.
P=450.
R=4.5.
Formula is N=100*si/p*r.
=100*81/450*4.5.
=8100/2025.
=4.
N=4 years.
given data is:
S.I=81.
P=450.
R=4.5.
Formula is N=100*si/p*r.
=100*81/450*4.5.
=8100/2025.
=4.
N=4 years.
Ravimanne said:
1 decade ago
Please clarify me difference between P and I and their full form and way of usage in formula?
Rajesh said:
1 decade ago
Rs. 450 at 4.5% per year gives 20.25 rupees.
So to get 81 we have to perform (81/20.25) = 4.
So to get 81 we have to perform (81/20.25) = 4.
Vinay Tiwari said:
1 decade ago
Please tell me some basic formulas related to SI.
Sandhya said:
1 decade ago
In the question given amount as 450 but not sum as 450.
We know that amount = principle(or)sum + s.i.
So the ans might be 4.5.
We know that amount = principle(or)sum + s.i.
So the ans might be 4.5.
Sameera said:
1 decade ago
Yes @Sandhya I agree your view.
But here sum (or) principle is not given but he say that Rs450 to yield means we have to keep in mind that the amount never yield (produce) interest only the principle will (produce) interest; so the given amount is principle only.
But here sum (or) principle is not given but he say that Rs450 to yield means we have to keep in mind that the amount never yield (produce) interest only the principle will (produce) interest; so the given amount is principle only.
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