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.
Srikruthi said:
9 years ago
p = 450,r = 4.5,i = 81,t = ?
I = P * R * T/100 now we have to find t=? so,
t = 100 * I/P * R.
t = 100 * 81/450 * 4.5.
= 100 * 81/45 * 10 * 4.5 (45 * 10 = 450).
= 100 * 81/45 * 45 (4.5*10 = 45).
= 36/9.
t =4.
I = P * R * T/100 now we have to find t=? so,
t = 100 * I/P * R.
t = 100 * 81/450 * 4.5.
= 100 * 81/45 * 10 * 4.5 (45 * 10 = 450).
= 100 * 81/45 * 45 (4.5*10 = 45).
= 36/9.
t =4.
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.
Shruthi said:
9 years ago
Clarify me difference between I and p.
Ramu said:
10 years ago
S.I = p*t*r/100.
100*S.I = p*t*r.
100*S.I/p*r = t.
Here p = 450, S.I = 81, r = 4.5 substitute above we get answer.
100*S.I = p*t*r.
100*S.I/p*r = t.
Here p = 450, S.I = 81, r = 4.5 substitute above we get answer.
RAJKUMAR said:
10 years 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.
Shreyank said:
1 decade ago
Let's we gone to take an answer.
450*45*4/100*10.
So the answer came to the 81 rs.
That amount we shown in question so answer is true.
450*45*4/100*10.
So the answer came to the 81 rs.
That amount we shown in question so answer is true.
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.
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.
Sumit said:
1 decade ago
t = ?
P = Rs.450.
S.I = 81.
R = 4.5%.
As we know : SI = P*R*T/100.
: T = S.I*100/P*R.
i.e: 81*100/450*405 = 4 yr.
P = Rs.450.
S.I = 81.
R = 4.5%.
As we know : SI = P*R*T/100.
: T = S.I*100/P*R.
i.e: 81*100/450*405 = 4 yr.
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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