Aptitude - Simple Interest - Discussion
Discussion Forum : Simple Interest - General Questions (Q.No. 13)
13.
A certain amount earns simple interest of Rs. 1750 after 7 years. Had the interest been 2% more, how much more interest would it have earned?
Answer: Option
Explanation:
We need to know the S.I., principal and time to find the rate.
Since the principal is not given, so data is inadequate.
Discussion:
98 comments Page 5 of 10.
Markie said:
6 years ago
The answer cannot be determined because the principal is not given and we cannot assume rate r to be 100 or any value. Thanks.
Gopal Gupta said:
6 years ago
According to me, the question says to increase the rate by 2%. Which means if the original is R% then the new rate is (R+2)%.
So old interest.
I=PR*7/100.
And new interest.
I'=P*(R+2)*7/100.
Thus the answer can't be determined without the principal.
So old interest.
I=PR*7/100.
And new interest.
I'=P*(R+2)*7/100.
Thus the answer can't be determined without the principal.
Debjit Dey said:
7 years ago
I think the answer is 35.
Bhadresh savani said:
8 years ago
B is correct.
2% for 7 years will be 14%.
14% of 1750 is 245.
2% for 7 years will be 14%.
14% of 1750 is 245.
Koko said:
7 years ago
Here, the 2% more interest means in absolute S.I terms, as in if it was 6% interest then how much more would you earn if you had 8% interest, not 6% x 1.02 which is 6.12%. Since we cannot calculate the S.I itself, we will never be able to find the answer. Please anyone help me to get it.
Soumya Gochhayat said:
7 years ago
Let Principal=100 so,
1st interest = prt/100,
=> 1750= (100 * r * 7)/100,
=> r = 250,
Then if r increases by 2%,
then r =250*102/100 = 255,
so 2nd interest = (100 * 255 * 7)/100 = 1785,
Difference = 1785 - 1750 = 35. (ans).
1st interest = prt/100,
=> 1750= (100 * r * 7)/100,
=> r = 250,
Then if r increases by 2%,
then r =250*102/100 = 255,
so 2nd interest = (100 * 255 * 7)/100 = 1785,
Difference = 1785 - 1750 = 35. (ans).
Ajit arya said:
7 years ago
According to me;
Interest for 7 yr is 1750 means
For 1 yr interest is 250.
So assume the interest is 10% this way principle amount becomes 2500.
And now 8% interest for 7 yr of 2500 = 1400.
So the more interest earned = (1750-1400) = 350 ans.
Interest for 7 yr is 1750 means
For 1 yr interest is 250.
So assume the interest is 10% this way principle amount becomes 2500.
And now 8% interest for 7 yr of 2500 = 1400.
So the more interest earned = (1750-1400) = 350 ans.
Mehrzad said:
7 years ago
Yes, According to me, the answer should be 35.
Bhavuk said:
7 years ago
S.I. for 1 year = 1750/7=250.
increase by 2% = 250*2/100=255.
Every yr he would get extra 5 rs.
So, for 7 yrs = 5 * 7= 35
increase by 2% = 250*2/100=255.
Every yr he would get extra 5 rs.
So, for 7 yrs = 5 * 7= 35
Uppalapu Venkatesh said:
7 years ago
I think the answer is 35.
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