Aptitude - Simple Interest - Discussion
Discussion Forum : Simple Interest - General Questions (Q.No. 8)
8.
A lent Rs. 5000 to B for 2 years and Rs. 3000 to C for 4 years on simple interest at the same rate of interest and received Rs. 2200 in all from both of them as interest. The rate of interest per annum is:
Answer: Option
Explanation:
Let the rate be R% p.a.
| Then, |  |
5000 x R x 2 |  |
+ | |
3000 x R x 4 | |
= 2200. |
| 100 | 100 |
100R + 120R = 2200
| R = |
|
2200 | |
= 10. |
| 220 |
Rate = 10%.
Discussion:
21 comments Page 1 of 3.
RaMan said:
3 years ago
In 3000, 1percent in 4yrs is 120.
In 5000, 1percnt in 2 yrs is 100.
Total interest 1 per cent is 220.
220 is 1 percent is then what is the 2200 percent is 10%.
In 5000, 1percnt in 2 yrs is 100.
Total interest 1 per cent is 220.
220 is 1 percent is then what is the 2200 percent is 10%.
(13)
Francis said:
6 years ago
We subtract 5000-3000=2000.
We get 2000,
In this shows that si 2200 from both,
So 2000*10% = 200+2000 = 2200.
We can understand that 10 % will be the rate of interest.
We get 2000,
In this shows that si 2200 from both,
So 2000*10% = 200+2000 = 2200.
We can understand that 10 % will be the rate of interest.
(9)
Nagesh N said:
7 years ago
According to %change=(Difference/ initial value)*100.
Similarly (5000-3000)=2000.
((2200-2000)/2000)*100=(200/2000)*100 = 10%.
Similarly (5000-3000)=2000.
((2200-2000)/2000)*100=(200/2000)*100 = 10%.
(3)
K. Haritha said:
7 years ago
5000*2*r/100+3000*4*r/100=2200,
100r+120r=220r,
220r=2200,
10.
100r+120r=220r,
220r=2200,
10.
(1)
Adil Shaikh said:
8 years ago
Hi,
Thanks everyone for giving such good explanation.
Thanks everyone for giving such good explanation.
Anil said:
8 years ago
Friends use backward method through options
take 10%.
10% of 5000 is 500 (for 1 year)
For 2 years 500*2 = 1000.
10% of 3000 is 300(for 1 year)
For 4 years 300*4 = 1200.
Add both interests 1000+1200 = 2200.
take 10%.
10% of 5000 is 500 (for 1 year)
For 2 years 500*2 = 1000.
10% of 3000 is 300(for 1 year)
For 4 years 300*4 = 1200.
Add both interests 1000+1200 = 2200.
Kumar said:
8 years ago
5000 * 2 = 10000
3000 * 4 = 12000
------------------------
= 22000
R%= 2200 * 100/22000 * 1 = 10.
3000 * 4 = 12000
------------------------
= 22000
R%= 2200 * 100/22000 * 1 = 10.
(6)
Likith said:
9 years ago
Guys, it easy.
5000-B-2yrs
3000-c-4yrs.
The rate of interest same(data).
Finally, the lender gets total 2200 as interest. (use some logic).
Assume B pays x amount of interest,
It means c pays x - 2200.
x =(5000 * 2 * R)/100 (B DATA).
X - 2200 = (3000 * 4 * R)/100 *C DATA.
SOLVE ABOVE 2 EQUATIONS, YOU Will GET 10% RATE OF INTEREST.
5000-B-2yrs
3000-c-4yrs.
The rate of interest same(data).
Finally, the lender gets total 2200 as interest. (use some logic).
Assume B pays x amount of interest,
It means c pays x - 2200.
x =(5000 * 2 * R)/100 (B DATA).
X - 2200 = (3000 * 4 * R)/100 *C DATA.
SOLVE ABOVE 2 EQUATIONS, YOU Will GET 10% RATE OF INTEREST.
Anand J said:
9 years ago
In question A, B and C are given. I thought there were 3 members, I tried for 3 members. Then what is "A". Is A first person or sentence formation? Please explain.
Mohit said:
9 years ago
2200/200, 220 how come?
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