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Aptitude - Simple Interest - Discussion

Discussion Forum : Simple Interest - General Questions (Q.No. 3)
Simple Interest
3.
A sum fetched a total simple interest of Rs. 4016.25 at the rate of 9 p.c.p.a. in 5 years. What is the sum?
Rs. 4462.50
Rs. 8032.50
Rs. 8900
Rs. 8925
None of these
Answer: Option
Explanation:
Principal
= Rs. 100 x 4016.25
9 x 5
= Rs. 401625
45
= Rs. 8925.
Discussion:
61 comments Page 2 of 7.
Prasad said:   4 months ago
SI = 4016
R = 9%p.a
T = 5yrs
P = ?
9 × 5 = 45%
45% = 4016.25
100% = ?
Ans = 8925.
(2)
Anonymous said:   4 years ago
PCPA is used for compound interest. Right?
(2)
Karthick said:   6 years ago
Why we take 100?

I can't understand this problem. Please anyone explain this problem.
(1)
Parkash jha said:   8 years ago
5 years = 4016.25.
So, 1 years = 803.25.

Now formula, Rate % = Interest/principalx100(only for 1 years).
So, principal=803.25/9x100=8925.

Hence principal = 8925 ans=(C).
(1)
Vineeth said:   7 years ago
A=p(1+RT/100).

A=total money, borrow,
P=lended,loan,sum,
R=rate,
T=time.
Thiru said:   8 years ago
Here, S.i = p * n * r/100.
Ans = 401625= P * 5 * 9/100

Next step 401625 * 100/5 * 9 = p then 40162500/45 => Ans = 8925.
Lakshmi said:   8 years ago
I understand your concept thanks @Bhavna.
Shreekant said:   8 years ago
Why 100 is multiplied?
NEELESH said:   8 years ago
HERE IS AN INTERESTING TRICK:

Since, the rate is 9% for 5 years, so total SI is 45%.

Now 45% = 4016.25 so 100% = 4016.25*100/45 = 8925.
Niharika said:   5 years ago
@Basil.

It is given in the question that it is simple interest. So SI formula is applied here. PCPA stands here for per cent per annum.
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