Aptitude - Simple Interest - Discussion

Discussion Forum : Simple Interest - General Questions (Q.No. 6)
6.
A sum of Rs. 12,500 amounts to Rs. 15,500 in 4 years at the rate of simple interest. What is the rate of interest?
3%
4%
5%
6%
None of these
Explanation:

S.I. = Rs. (15500 - 12500) = Rs. 3000.

 Rate = 100 x 3000 % = 6% 12500 x 4

Video Explanation: https://youtu.be/SIcQu1HOmOk

Discussion:
50 comments Page 1 of 5.

Sulthan shareef said:   2 years ago
15500-12500 = 3000.
100 * 3000 = 30000.
12500 * 4 = 50000.
100*30000/12500 * 4 = 6.
(3)

Karthik said:   3 years ago
You can solve by percentage method;

Simple interest is 3000 for 4years,
So 3000/12500x100% = 24%,
24/4 = 6,
Ans is 6.
(10)

RAVAAN said:   4 years ago
15500 - 12500 = 3000.
100% = 12500,
= 3000.

=> 24% for 4 years ,
Then 1 year = 6%.
(3)

SK SAFIQUR RAHEMAN said:   5 years ago
Amount = Principal+S.I.
=>S.I. = Amount - Principle.
=>S.I.= 15500-12500 = 3000 (S.I. for 4 years).
As S.I. is same in every year,So 1st yr=750.

12500*X/100 = 750.
=>X=750/125= 6%.

Bombay said:   5 years ago
I = Pin
where I = is the amount of interest
P = present amount
i = rate of interest
n = number of years
If Future Amount is 15500 and
Present amount is 12500. Therefore 3000 is the amount of interest.
F = P + I.
Then;
I = Pin/
3000 = 12500 * 4 years.
i = 0.06 *100.
= 6%.
(2)

Kumar said:   5 years ago
Here, it is taken 12500 and returns 15500, that means the total amount of interest given is 15500 - 12500 = 3000.
(1)

Rohit said:   5 years ago
Principal amount = 12,500.
Period = 4 Years.
Rate = Find.

So,
S.I = (15,500-12500) = 3000.
Rate ={100 x 3000/12,500/4} = 6%.
(1)

Nive said:   5 years ago
Let me explain guys
12500 is the actual amount after 4 years amount will be 15,500 with simple interest alright so that we need to find what per cent of interest they paid for 12,500.

15,500-12500
3000.

SI = PTR/100.
Si = 100*r/p*t.

100*3000/12500*4,
6%.
(1)

Geelani said:   5 years ago
Simple To get per year S.I.
15500 -12500 = 750,
Then keep anyone sum as 100%.

100% = 12500,
Then,
X = 750 *100/12500.
X = 6.
(1)

Ayush said:   6 years ago
Amount Rs.15,500.
The sum Rs.15,500.

Amount = 15,500 it means S.I is 3000 (i.e S.I = Amount - Sum = 15,500 - 12,500=3,000)

3000 is 24% of 12,500 (because 12,500 // 1% = 125 // 3,000/125=24% ).

But 24% is for 4 year.
So we divide 24%/4 and got rate 6% p.a.
(1)