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
Answer: Option
Explanation:

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

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

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

Discussion:
51 comments Page 4 of 6.

RAVAAN said:   6 years ago
15500 - 12500 = 3000.
100% = 12500,
= 3000.

=> 24% for 4 years ,
Then 1 year = 6%.
(5)

Rajesh said:   10 years ago
--> 12500*6% = 750.

---> 750*4 = 3000.

---> 12500+3000 = 15500.

Answer: 6%.

Sulthan shareef said:   3 years ago
15500-12500 = 3000.
100 * 3000 = 30000.
12500 * 4 = 50000.
100*30000/12500 * 4 = 6.
(5)

Yeswanth said:   1 decade ago
Still I deosn't understand why we have to consider SI as sub 1550 from12500.

Namit kumar said:   10 years ago
Friends its very simple.

15500-12500 = 3000 /4 = 750.

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

Kshiroda said:   8 years ago
To get simple interest we have to multiply principal *rate*time/100.

Sana said:   1 decade ago
Why subtraction take place? principle & amount is equal?

Ruturaj said:   1 decade ago
He calculation used to calculate rate gives out 150 not 6.

Answer me said:   2 decades ago
Can someone please explain why we sub 12500 from 15500 ?

Abhishek said:   1 decade ago
Is it like

Amount= P + S.I

Amount= P + (P*T*R)/100 ?


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