Aptitude - Simple Interest - Discussion
Discussion Forum : Simple Interest - General Questions (Q.No. 10)
10.
A man took loan from a bank at the rate of 12% p.a. simple interest. After 3 years he had to pay Rs. 5400 interest only for the period. The principal amount borrowed by him was:
Answer: Option
Explanation:
| Principal = Rs. |  |
100 x 5400 |  |
= Rs. 15000. |
| 12 x 3 |
Discussion:
32 comments Page 3 of 4.
Asdf said:
1 decade ago
Then what is the formula for compound interest?
Chandrakant sinh said:
1 decade ago
One year int is 36 for 100 so total int is 5400 so 5400*100/36 = 15000.
Srikanth Duppada said:
1 decade ago
For 1 year 12% then for 3 years 36%(12+12+12)(this is only for S.I not for C.I).
Take 100 as principal then 36 rs interest for 100 then,
5400..............?(Principal).
(5400/36)x100 = 15000.
Take 100 as principal then 36 rs interest for 100 then,
5400..............?(Principal).
(5400/36)x100 = 15000.
Debashree said:
1 decade ago
In 1 year interest is 5400/3=1800rs.
12rs interest in 100 rs principal.
Then 1800rs interest for (1800*100)/12=15000rs(answer).
12rs interest in 100 rs principal.
Then 1800rs interest for (1800*100)/12=15000rs(answer).
Anusha said:
1 decade ago
Tell me logic's about this problems.
Anand said:
1 decade ago
I=(PRN)/100
Simple formulae.
Simple formulae.
Ashik said:
1 decade ago
p=?
r=12%
t=3 yrs
p*t*r/100=s.i
p*3*12/100=5400
p*36=5400*100=540000
p=540000/36
p=15000
r=12%
t=3 yrs
p*t*r/100=s.i
p*3*12/100=5400
p*36=5400*100=540000
p=540000/36
p=15000
Nimisha said:
1 decade ago
@Naveen
'p' is principle,
't' is time,
'n' is number of years and
'r' is rate of interest.
'p' is principle,
't' is time,
'n' is number of years and
'r' is rate of interest.
NAVEEN said:
1 decade ago
Can anybody expand this formula. SI = PTR/100.
Sanna said:
1 decade ago
Let the principal amount be p
simple interest=p*n*r/100
so, p*3*12/100=Rs.5400
p*36/100=5400
p=5400*100/36
p=Rs.15000
Thus we can get the answer....
simple interest=p*n*r/100
so, p*3*12/100=Rs.5400
p*36/100=5400
p=5400*100/36
p=Rs.15000
Thus we can get the answer....
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