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 8 of 18.
Sudesna said:
1 decade ago
When we apply the formula SI = PRT/100.
And when we apply the formula Amount = P+SI.
And when we apply the formula Amount = P+SI.
Sunil said:
8 years ago
Thanks, I like this explanation.
This is helpful to understand the simple interest.
This is helpful to understand the simple interest.
Sanlar said:
2 years ago
P + 3(I) = 815,
P + 4(I) = 854,
Totally = I = 39,
P + 3 × 39 = 117,
854 - 117 = 698.
P + 4(I) = 854,
Totally = I = 39,
P + 3 × 39 = 117,
854 - 117 = 698.
(19)
Ashok said:
7 years ago
What is the difference between interest and simple interest? Please explain anyone.
Sadaf said:
3 years ago
Why have we taken out 39? I didn't understand anything Anyone, please explain me.
(57)
Rajeswari said:
8 years ago
3years = 815.
4years = 854.
Diff = 39.
39*3 = 117.
815-117 = 698.
854-117 = 698.
4years = 854.
Diff = 39.
39*3 = 117.
815-117 = 698.
854-117 = 698.
Ravi ranjan prajapati said:
7 years ago
1year= 854-815=39.
1year=39 then,4year= 39*4=156,
then,854-156=698,
ans:698.
1year=39 then,4year= 39*4=156,
then,854-156=698,
ans:698.
Ramu said:
4 years ago
@Gayathri & @Ismail Khan
You both explained well. Thanks for eplaining.
You both explained well. Thanks for eplaining.
Ranjitha said:
1 decade ago
Its same friends.. you can do it in either way
(39*4)=156
854-159=698 only
(39*4)=156
854-159=698 only
Anusha said:
8 years ago
Very helpful to understand the solution. Thanks for all your explanation.
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