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 3 of 7.
Aiswarya mohan v said:
8 years ago
Given
Si=81
P=450
R=4.5
T=?
We know si=PRT/100.
Therefore T=si*100/P*R,
=81*100/450*4.5,
=81*10/45*4.5,
=81*2/9*4.5,
=9*2/4.5,
=18/4.5,
=4.
Si=81
P=450
R=4.5
T=?
We know si=PRT/100.
Therefore T=si*100/P*R,
=81*100/450*4.5,
=81*10/45*4.5,
=81*2/9*4.5,
=9*2/4.5,
=18/4.5,
=4.
(1)
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.
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.
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.
Mohammed ashik said:
9 years ago
100% = 450. Rs.
1% = 4.5 Rs.
4% = 18.00 Rs.
0.5% = 2.25 Rs.
So 4.5% = 20.25 Rs.
Hence 20.25 * 4 = 81 Rs.
Ans: 4 years.
1% = 4.5 Rs.
4% = 18.00 Rs.
0.5% = 2.25 Rs.
So 4.5% = 20.25 Rs.
Hence 20.25 * 4 = 81 Rs.
Ans: 4 years.
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.
Prabhanshu said:
6 years ago
In this question principal is given or amount is given since as we know amount = principal + simple interest ?
Glory said:
5 years ago
In that question, the amount was given but they have directly taken as principal. Why? please clarify it.
(2)
R.Varshitha said:
7 years ago
Answer is 4.7 because;
amount = 450,
s.i=81,
p is not given,
A=P+I.
P=379,
t=81*100/(4.5*379),
t=4.73.
amount = 450,
s.i=81,
p is not given,
A=P+I.
P=379,
t=81*100/(4.5*379),
t=4.73.
(1)
Anmol kamboj said:
3 years ago
81 = 450 * 4.5*time/100.
81*100= 450 * 4.5 * time.
8100 = 2025 * time.
Time = 8100/2025 = 4 year.
81*100= 450 * 4.5 * time.
8100 = 2025 * time.
Time = 8100/2025 = 4 year.
(11)
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