Aptitude - Simple Interest - Discussion
Discussion Forum : Simple Interest - General Questions (Q.No. 2)
2.
Mr. Thomas invested an amount of Rs. 13,900 divided in two different schemes A and B at the simple interest rate of 14% p.a. and 11% p.a. respectively. If the total amount of simple interest earned in 2 years be Rs. 3508, what was the amount invested in Scheme B?
Answer: Option
Explanation:
Let the sum invested in Scheme A be Rs. x and that in Scheme B be Rs. (13900 - x).
| Then, |  |
x x 14 x 2 |  |
+ | |
(13900 - x) x 11 x 2 | |
= 3508 |
| 100 | 100 |
28x - 22x = 350800 - (13900 x 22)
6x = 45000
x = 7500.
So, sum invested in Scheme B = Rs. (13900 - 7500) = Rs. 6400.
Video Explanation: https://youtu.be/Xi4kU9y6ppk
Discussion:
115 comments Page 5 of 12.
Manikant Thakur said:
10 years ago
In the question it is not mention that A having x or B having x so I am confuse here I got these two answer 7500 & 6400 so which should be the right one?
Renu said:
1 decade ago
Formula is simple interest(S.I)=P*T*R/100;
P=Principal amount or sum
T=Time
R=Interest rate
By using this formula we can solve this.
P=Principal amount or sum
T=Time
R=Interest rate
By using this formula we can solve this.
Vikas said:
6 years ago
step 1= p*r*t/100.
step 2=A=X & B=Y,
step 3= (X*14/100*2/2)+(Y*11/100*2/2)=3508/2.
step 4=X+y=3508,
After calculation we get x and y value.
step 2=A=X & B=Y,
step 3= (X*14/100*2/2)+(Y*11/100*2/2)=3508/2.
step 4=X+y=3508,
After calculation we get x and y value.
Karthik said:
8 years ago
Why the amount invested in the scheme a should be taken as x and in scheme b should be taken as 13900-x, as both amounts are part of 13900?
Mahesh said:
1 decade ago
@King Kartik.
Formula : RT = (n-1)100.
Here: N = 2 (amount is double).
T = 5yr.
R?
Then 5R = 100.
R = 100/5.
R = 20.
Formula : RT = (n-1)100.
Here: N = 2 (amount is double).
T = 5yr.
R?
Then 5R = 100.
R = 100/5.
R = 20.
Tiama said:
8 years ago
I am confused with the following stem.
28x + 305800 - 22x = 3808 * 100.
Where did the other denomination (ie 100) gone?
28x + 305800 - 22x = 3808 * 100.
Where did the other denomination (ie 100) gone?
Jay said:
1 decade ago
We can solve this problem this way - I = Pti when i=interest, p= actual amount, i=rate of interest, t=time.
Anshul said:
8 years ago
The answer can be 6400 or 7500.
It is not necessary that A will invest X and B will invest the difference.
It is not necessary that A will invest X and B will invest the difference.
Renu said:
8 years ago
@Phani Kumar.
Can you plz tell me how to take a difference between r1 and r2 (14% - 11%) or (14*2-11*2).
Can you plz tell me how to take a difference between r1 and r2 (14% - 11%) or (14*2-11*2).
B Krishna said:
6 years ago
How did you Assume that 7500 here, in what basis did you get that, can we get a Clear Explanation on this?
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