Aptitude - Simple Interest - Discussion
Discussion Forum : Simple Interest - General Questions (Q.No. 1)
1.
A sum of money at simple interest amounts to Rs. 815 in 3 years and to Rs. 854 in 4 years. The sum is:
Answer: Option
Explanation:
S.I. for 1 year = Rs. (854 - 815) = Rs. 39.
S.I. for 3 years = Rs.(39 x 3) = Rs. 117.
Principal = Rs. (815 - 117) = Rs. 698.
Discussion:
171 comments Page 17 of 18.
Vijay said:
1 decade ago
What is formula of simpe interest ?
(1)
Hari said:
1 decade ago
I like this type of solutions thank you
I think this answer also
1year 854-815=39
3years 39*4=156
854-156=698
I think this answer also
1year 854-815=39
3years 39*4=156
854-156=698
RAMESH said:
1 decade ago
PTR/100 = 815
P*3*R/100 = 815
R/100=854- 815
p * 3 * 39 = 815
P * 117 = 815
p = 815-117 = 698
P*3*R/100 = 815
R/100=854- 815
p * 3 * 39 = 815
P * 117 = 815
p = 815-117 = 698
Vishnu said:
1 decade ago
To get a si of one year or it might be two years if it is two year we have to divide it by two si=3yrs -2yrs willl give u one year si why should we have to go to risk.
Appu said:
1 decade ago
Hai friends,
Principle is the amount borrowed. Here, explain about SI of 3 years and 4 years. Assume P is the principal then, P+854 for 4 years and p+815 for 3yrs.
So here it is necessary to find the SI of one year and subtract it from the 3 year or 4 year.
That is, (815-117) = 698 and 854-156=698.
Principle is the amount borrowed. Here, explain about SI of 3 years and 4 years. Assume P is the principal then, P+854 for 4 years and p+815 for 3yrs.
So here it is necessary to find the SI of one year and subtract it from the 3 year or 4 year.
That is, (815-117) = 698 and 854-156=698.
(2)
Nag said:
1 decade ago
Thank you. This is explanation is very helpful for me.
Priya said:
1 decade ago
@Lavanya and kanna
To get 1 year difference we have to subtract
4year amount-3year amount
this difference amount is the 1 year simple interest..
that's why..
Rs. (854 - 815) = Rs. 39
39 is 1year S.I.
hope it helps you..
To get 1 year difference we have to subtract
4year amount-3year amount
this difference amount is the 1 year simple interest..
that's why..
Rs. (854 - 815) = Rs. 39
39 is 1year S.I.
hope it helps you..
Kannan said:
1 decade ago
Why should not subsract with 854? Please clear my doubt....
Name said:
1 decade ago
3y--815,
4y--854,
----------
1y--39,
So, 3y ---39 x 3 = 117
Principal is = (815-117) = 698
4y--854,
----------
1y--39,
So, 3y ---39 x 3 = 117
Principal is = (815-117) = 698
(1)
Jayesh said:
2 decades ago
Can the formula be SI*100/R*T ?
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