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 2 of 7.
RAJKUMAR said:
1 decade ago
S.I = 81, P = 450, R = 4.5.
T = S.I*100/P*R.
T = 81*100*10/450*45 (Cancel 100/450 with 5 and 81 AND 45 CANCEL WITH 9 AND 45 AND 10 CANCEL WITH 5).
T = 9*2*2/9.
T = 36/9.
T = 4 Years.
T = S.I*100/P*R.
T = 81*100*10/450*45 (Cancel 100/450 with 5 and 81 AND 45 CANCEL WITH 9 AND 45 AND 10 CANCEL WITH 5).
T = 9*2*2/9.
T = 36/9.
T = 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.
Gayatri said:
12 months ago
Time = [100× S.I/P×R]yrs.
Here, from the equation
S.I = 81₹.
P. = 450₹
R. = 4.5%.
Time (T) = 100 × 81/450 × 4.5,
= 8100/2025.
=4 yrs.
Here, from the equation
S.I = 81₹.
P. = 450₹
R. = 4.5%.
Time (T) = 100 × 81/450 × 4.5,
= 8100/2025.
=4 yrs.
(13)
Bhavna said:
1 decade ago
Given,
S.I = 81, P = 450, R = 4.5.
T = S.I*100/P*R.
T = 81*100/450*4.5 (Cancel 100/450 with 5 and 81 with 9).
T = 9*2/4.5.
T = 18/4.5 => 180/45.
T = 4 Years.
S.I = 81, P = 450, R = 4.5.
T = S.I*100/P*R.
T = 81*100/450*4.5 (Cancel 100/450 with 5 and 81 with 9).
T = 9*2/4.5.
T = 18/4.5 => 180/45.
T = 4 Years.
Rushi said:
8 years ago
@Ragu.
The steps you had done is actually like this,
=(100x81)/(450x4.5)
=(2x81)/(9x4.5)
=(2x9)/(1x4.5)
=4.
You hav taken
=(2x2)/(4.5)
bt actually 81/9 is 9 not 2.
The steps you had done is actually like this,
=(100x81)/(450x4.5)
=(2x81)/(9x4.5)
=(2x9)/(1x4.5)
=4.
You hav taken
=(2x2)/(4.5)
bt actually 81/9 is 9 not 2.
Sam said:
1 decade ago
1% of 450 is 4.50.
2% of 450 is doubles the 1% 9.
4% of 450 is. 18.
0.5% of 450 is half the 1% 2.25.
Total 4.5 p.a. is: 20.25.
For 4 years: 4*20.25== 81.
2% of 450 is doubles the 1% 9.
4% of 450 is. 18.
0.5% of 450 is half the 1% 2.25.
Total 4.5 p.a. is: 20.25.
For 4 years: 4*20.25== 81.
Hemalatha said:
7 years ago
The amount is 1200.
The rate of interest-4.5%,
Thus, amount /interest =si for a year.
1200/4.5--->20.25.
Now, the interest amount 81.
81/20.25===>4years.
The rate of interest-4.5%,
Thus, amount /interest =si for a year.
1200/4.5--->20.25.
Now, the interest amount 81.
81/20.25===>4years.
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.
Mona said:
9 years ago
@Shruthi.
The I is an interest which had paid for using someone's money whereas p is the principal or sum which is the amount you borrowed from someone.
The I is an interest which had paid for using someone's money whereas p is the principal or sum which is the amount you borrowed from someone.
Ragu said:
1 decade ago
(100*81/450*4.5)=(2*81/9*4.5)=(2*2/4.5)
so 4/4.5=4 (given ans)but
4/4.5=0.8888
So my doubt is how the ans was 4 years? can anyone explain me clearly?
so 4/4.5=4 (given ans)but
4/4.5=0.8888
So my doubt is how the ans was 4 years? can anyone explain me clearly?
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