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:
Rs. 650
Rs. 690
Rs. 698
Rs. 700
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 12 of 18.

V.malarvizhi said:   2 decades ago
Why not applied principal formula si*100/r*t ?

Jaya said:   1 decade ago
Gayathri thanks a lot its vry clr & simple

Akp said:   7 years ago
Thanks for giving the solution in a clear way.

Lijeshet said:   4 years ago
854 - 815 = 39,
39 * 4 = 156,
854 - 156 = 698.
(9)

Tamanna said:   4 years ago
Thank you for explaining the answer @Gayathri.
(14)

Akki said:   2 years ago
Here;
P+4I = 854,
p+3I = 815,
I = 39,
p = 698.
(21)

Vamshi said:   6 months ago
Nice explanation. Thanks for the explanation.
(6)

Srada said:   4 months ago
Thanks all for explaining the answer clearly.
(2)

Aparna said:   9 years ago
Crystal clear explanation, Thanks @Gayathri.

Kitty said:   9 years ago
@Appu.

Your explanation is good, Thank you.


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