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 16 of 18.
Pooja Yadav said:
7 years ago
Thanks all for explaining the answer.
Prashanth gowda said:
7 years ago
Thanks for giving the explanation of the answer.
Lelisa said:
7 years ago
4y-3y =1y so that 1y can be Rs. (854-815) Rs.39.
So, 3 years then 39 * 3 = 117.
So the principal is 815-117 =698.
So, 3 years then 39 * 3 = 117.
So the principal is 815-117 =698.
Rohit said:
7 years ago
A mobile worth Rs. 500 can be bought by paying a down payment of Rs.100 and 8 equal instalments of Rs. 50 each. Calculate the rate of interest.
Please, anyone, solve this.
Please, anyone, solve this.
Padma said:
7 years ago
We can also solve in another way.
Si for 1 year = 854-815 = 39.
Si for 4 years = 39 * 4 = 156.
Principal = sum-interest.
= 854 - 156 = 698.
Si for 1 year = 854-815 = 39.
Si for 4 years = 39 * 4 = 156.
Principal = sum-interest.
= 854 - 156 = 698.
Ashok said:
7 years ago
What is the difference between interest and simple interest? Please explain anyone.
Navi said:
7 years ago
Thanks for the answer @Padma.
Anoimee said:
7 years ago
Thanks all for the answer.
Sharmistha Pan said:
7 years ago
@Aall.
It's already given in the question that simple interest in 3 years amounts to 815. Then why did we again multiply 39*3 for taking out the SI for 3 years.
Please clarify me.
It's already given in the question that simple interest in 3 years amounts to 815. Then why did we again multiply 39*3 for taking out the SI for 3 years.
Please clarify me.
Prabhukiran said:
7 years ago
Nice Explanation, thanks @Vikram.
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