Aptitude - Simple Interest - Discussion

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"When ambition ends, happiness begins."

- (Proverb)

A sum of Rs. 12,500 amounts to Rs. 15,500 in 4 years at the rate of simple interest. What is the rate of interest?

Answer: Option C

Explanation:

S.I. = Rs. (15500 - 12500) = Rs. 3000.

Rate = 100 x 3000 % = 6%

12500 x 4

Answer Me said: (Fri, Jun 25, 2010 02:31:57 AM)

Can someone please explain why we sub 12500 from 15500 ?

Priyanka said: (Mon, Nov 29, 2010 10:20:12 AM)

@answer me To get amount of S.I. for four years..

Juhi said: (Mon, Jul 4, 2011 04:31:39 AM)

Amount = principal + simple interest. Dats why we subtracted amount and principal to have the simple interest.

Yeswanth said: (Sat, Jul 30, 2011 09:12:35 PM)

Still I deosn't understand why we have to consider SI as sub 1550 from12500.

Abhishek said: (Mon, Aug 1, 2011 11:05:10 AM)

Is it like Amount= P + S.I Amount= P + (PTR)/100 ?

S.Gowthami said: (Fri, Aug 12, 2011 12:33:38 AM)

In that question we are having 3 rate values,so we substitue one by one values then we get the corrct values.for example: p=12500 n=4 r=3 or 4 or 5 or 6 If we sub:3 1250043/100=1500 1500+12500=14000,we are not getting the correct amount value then We sub another, 1250064/100=3000 3000+12500=15500, Now we got the correct value.

Aayush Bhatnagar said: (Tue, Sep 13, 2011 11:03:35 AM)

The calculation used to calculate rate gives out 30 as the answer. [(3000 x 100)/(12500 x 4)] = 30. NOT 6. Can anyone throw a light on this?

Jenson said: (Fri, Sep 23, 2011 09:07:59 PM)

A boy saves Rs.4.65 daily. Find the least number of days in which he will be able to save an exact number of rupees. Can anyone get me answer for this ?

Ruturaj said: (Fri, Nov 4, 2011 11:11:03 AM)

He calculation used to calculate rate gives out 150 not 6.

Gayu said: (Sat, Jul 7, 2012 04:55:47 PM)

Here, 6 is the correct answer. 15500-12500=3000. Formula: SI=PNR/100. 3000=125004R/100. 3000100/125004=R. 300000/50000=R. R=6%.

Pandu said: (Fri, Feb 22, 2013 10:18:45 AM)

Here SI=PTR/100 So, SI=15500-12500=3000. P=12500, T=4YER, SO 3000=125004R/100, i.e R=3000/500= 6% answer.

Rajesh said: (Fri, May 17, 2013 09:14:04 PM)

We have a 12500 amount & after 4 year, we get 15500 amount so total. Profit amount or S.I in 4 Year is 3000. Now use the Formula:. S.I = (PRT) /100.